Crushing device used for chicken manure organic fertilizer production and capable of conveniently adjusting crushing fineness

The utility model discloses a chicken manure organic fertilizer production crushing device convenient to adjust crushing fineness, which comprises a protective box, a crushing hopper is arranged at the top of the protective box, a crushing structure is arranged at the bottom of the crushing hopper, fixing plates are symmetrically arranged on two sides of the crushing hopper, and the fixing plates are connected with an adjusting structure for controlling the height of the crushing hopper. A feeding hopper is arranged in the middle of the top of the smashing hopper and communicates with the interior of the smashing hopper. The height of the crushing hopper can be adjusted in real time through the arranged adjusting structure, the effect of controlling the size of a gap between the cutting groove and a slice can be achieved by adjusting the height of the crushing hopper, the effect of controlling the size of particles capable of passing through can be achieved by controlling the size of the gap between the cutti