Disposed is a jet mill that has a cylindrical pulverization chamber (10) and a classification chamber (6) that connects to the pulverization chamber (10). A fine-powder discharge port (4a) and a classification rotor (7) are provided in the classification chamber (6). A feedstock supply port (5) and at least one gas emission nozzle (11) are provided in the pulverization chamber (10). The shape of the classification chamber (6) is a cone that starts on the inner wall of the pulverization chamber (10), and is angled towards the classification rotor (7). This configuration gives the jet mill high efficiency of pulverization and reduces the amount of powders left in the chamber when the jet mill has finished running.

Provided are a high-pressure jet impact chamber structure, with an industrial-grade single orifice+single pulverizing chamber design, and a multi-parallel type convenient pulverizing component adopted with the high-pressure jet impact chamber structure. The high-pressure jet impact chamber structure includes a body, a jet orifice, and a pulverizing chamber. The multi-parallel type convenient pulverizing component adopted with the high-pressure jet impact chamber structure includes a multi-parallel type chassis, a multi-parallel type connector disk, multiple high-pressure jet impact chamber structures that are parallel to each other, a sealing end cover, a discharge disk, and a discharge pipe.

Provided are a high-pressure jet impact chamber structure, with an industrial-grade single orifice+single pulverizing chamber design, and a multi-parallel type convenient pulverizing component adopted with the high-pressure jet impact chamber structure. The high-pressure jet impact chamber structure includes a body, a jet orifice, and a pulverizing chamber. The multi-parallel type convenient pulverizing component adopted with the high-pressure jet impact chamber structure includes a multi-parallel type chassis, a multi-parallel type connector disk, multiple high-pressure jet impact chamber structures that are parallel to each other, a sealing end cover, a discharge disk, and a discharge pipe.