Multi-stage crusher for producing inorganic dressing for in-vivo wound surface

The utility model discloses a multi-stage crusher for producing inorganic dressings on in-vivo wounds. The multi-stage crusher comprises a feeding box, a smashing box and a grinding box are sequentially installed at the bottom of the feeding box, a smashing cavity is formed in the center of the interior of the smashing box, a rotating shaft penetrating through the smashing box and the grinding box is installed in the center of the interior of the feeding box, and a detachable discharging box is installed at the bottom of the grinding box through a threaded structure. The crushing box and the grinding box are arranged, so that raw materials can be directly discharged into the grinding box to be ground after being crushed, manual transfer is not needed in the whole process, pollution is avoided in the processing process, the safety is higher, and the processing efficiency is improved. In addition, main crushing sheets and auxiliary crushing sheets which are matched are arranged in a crushing cavity of the crush