Granule drying machine

The utility model provides a granule drying machine, and relates to the technical field of granule drying. A bottom cover is arranged at the bottom of the drying cylinder; a feeding pipe communicated with the drying cylinder is arranged on the side wall of the shell; an air inlet and discharging pipe is arranged at the bottom of the shell; a heating layer is arranged on the inner wall of the heating cavity on the side part of the drying cylinder; a fixed ring is arranged at the upper part of the top end of the shell, a movable ring is rotationally arranged at the bottom of the fixed ring, an air inlet pipe is arranged on the fixed ring, an air pipe communicated with the stirring pipe is rotationally arranged at the bottom of the movable ring, and a planetary gear mechanism for driving the air pipe to rotate while performing circular motion is arranged at the top of the shell; a driving source for driving the bottom cover to lift is arranged in the heating cavity at the lower part of the bottom cover; and the