Multi-stage drying equipment for granules

The multi-stage granule drying equipment comprises a fixed shell, the fixed shell is in a cylindrical shell shape, a center rod is rotatably connected in the fixed shell, and the top end of the center rod penetrates through the end wall of the top end of the fixed shell and then is in transmission connection with a power motor fixedly connected to the top end of the fixed shell; the outer side of the center rod is fixedly sleeved with a plurality of partition plates, the partition plates are arranged at equal intervals in the axis direction of the center rod, the partition plates are in a circular plate shape, and the outer diameter of the partition plates is matched with the inner diameter of the fixed shell. The multiple partition plates are provided with discharging holes, and the discharging holes in the adjacent partition plates are arranged in a staggered mode. A dust removal mechanism, a disinfection mechanism and an air inlet mechanism are arranged on the outer side of the fixed shell, one end of the