Crushing device for denitration catalyst

The utility model relates to a denitration catalyst crushing device which comprises a bottom frame, a bracket fixed at the top of the bottom frame, a feeding disc fixed at the top of the bracket, an outer cylinder vertically inserted and fixed at the bottom of the closed end of the right side of the feeding disc, a main body arranged in the outer cylinder, and a chute plate fixed at the top of the bottom frame in a way that the left part is high and the right part is low, according to the utility model, the coarse crushing device, the scattering device and the fine crushing device are integrated together, so that the structure is greatly simplified, the size is reduced, the denitration catalyst raw material does not need to be frequently and manually transferred in the crushing process, the operation steps are remarkably simplified, and the use is convenient; and the particles with the particle sizes not meeting the requirement can be automatically intercepted in the screen drum to be continuously crushed, so