Sludge drying machine

The utility model relates to the technical field of sludge treatment, and provides a sludge drying machine which comprises a main body and a feeding hole, a feeding hole is formed in one side of the top end of the main body, an air outlet is formed in one side, far away from the feeding hole, of the top end of the main body, and an anti-blocking stirring structure is arranged on one side of the main body. According to the sludge drying machine, the anti-blocking stirring structure is arranged, the motor is started to enable the rotating shaft to drive the impeller to rotate, then the inner portion of the drying machine is prevented from being blocked due to sludge solidification, sludge blocks can be conveyed to the discharging port, the gear is arranged on the rotating shaft, and then the crushing device above the discharging port can be driven to rotate. And sludge blocks are prevented from being accumulated at the discharge hole to block the discharge hole, so that the aim of preventing the sludge from cak