The invention relates to a drum-type garbage sorting machine, which comprises a motor 1, a V belt transmission mechanism 2, a frame 3, a sorting needle device 4, a drum 5, a constant cam 6, a main shaft 7, a scraper 8, a garbage collecting plate 9 and a connecting shaft base 10. When the drum-type garbage sorting machine is used, the motor 1 inputs power, and the rotary speed and the torque are transferred to the drum 5 through the V belt transmission mechanism 2. The constant cam 6 is fixed on the frame 3 through the main shaft 7 and the connecting shaft base 10. A sorting needle 41 can stretch in different work areas through the relative movement of the drum 5 and the constant cam 6 so as to hook and separate garbage that is easy to wind. Then, sorted garbage is collected to an appointed storage container through the scraper 8 and the garbage collecting plate 9. The drum-type garbage sorting machine is simple in structure, is simple and convenient to operate and easy to popularize.