A wire saw apparatus comprises: a first pulley system from which a wire is withdrawn toward a structure to be cut; a second pulley system into which the wire is introduced from the structure; a first dust collection pipe unit provided to surround the wire between an end part at which surrounding of the structure by the wire ends and a part at which the wire is introduced into the first pulley system; and a second dust collection pipe unit provided to surround the wire between a start part at which surrounding of the structure by the wire starts and a part at which the wire is withdrawn from the second pulley system.

A cutting robot according to the present invention comprises a main frame which is mounted to both sides of a vehicle body that can travel, so as to be able to ascend, descend, and rotate; a first hydraulic cylinder that is connected between the vehicle body and the main frame and rotates the main frame; a horizontal frame rotatably connected to the front end of the main frame; a second hydraulic cylinder that is connected between the main frame and the horizontal frame and rotates the horizontal frame; a cutting frame mounted to the upper surface of the horizontal frame so as to be able to rotate left and right; a third hydraulic cylinder that is connected between the horizontal frame and the cutting frame and rotates the cutting frame left and right; a cutting blade mounting part.