Disclosed is a portable smokeless stove, including a combustion cylinder, a separating net and first ventilation holes. The combustion cylinder is provided with an accommodating chamber with upper and lower openings, and the accommodating chamber can accommodate a fire source; the separating net is provided in the accommodating chamber and can carry the fire source; and first ventilation holes are provided at upper and lower ends of the combustion cylinder, each of the first ventilation holes is distributed along a circumferential direction of the combustion cylinder and communicated with the accommodating chamber, and the first ventilation hole at the lower end is underneath the separating net.