Detachable multi-stage ultrafine powder grinding device

The utility model relates to the technical field of grinding devices, in particular to a detachable multi-stage superfine powder grinding device. The detachable multi-stage superfine powder grinding device comprises a grinding bin, a fixedly-connected supporting frame is erected at the inner bottom of the grinding bin, a rotating column is rotationally installed on the supporting frame, and the rotating column is located in the center of the grinding bin; at least one group of grinding components are arranged in the grinding bin from bottom to top; a motor is fixedly installed at the bottom of the supporting frame. The output end of the motor penetrates through the supporting frame and is fixedly connected with the bottom end of the rotating column. According to the grinding assembly, automatic discharging can be achieved while grinding is conducted, and continuous multi-stage grinding is formed through the arrangement of the multiple sets of grinding assemblies up and down; and the inner grinding wheel and t