Organic fertilizer cooling machine

The utility model relates to the technical field of organic fertilizer cooling, in particular to an organic fertilizer cooling machine which can effectively improve the cooling efficiency of organic fertilizer and conveniently clean the inner wall of a roller, and comprises the roller, a speed reducer and an air compressor, a plurality of annular rails are arranged on the outer wall of the roller, and a plurality of supporting seats are arranged below the roller. Two supporting rollers matched with the annular track are arranged at the top of each supporting seat, a driven gear is arranged on the outer wall of the roller, a driving gear and a driving motor are arranged on the speed reducer, mounting frames are arranged at the two ends of the roller, a plurality of gas conveying pipes are arranged between the two mounting frames, and a plurality of nozzles are arranged on each gas conveying pipe; a connecting pipe is connected between the exhaust end of the air compressor and each air delivery pipe, the input