Stone crusher

The utility model relates to the technical field of crushers, in particular to a stone crusher which comprises a working frame, a feeding bin and a dust removal mechanism are fixedly mounted at the top of the working frame, one end of the dust removal mechanism is mounted in the feeding bin, and guide plates are mounted on the inner surfaces of two corresponding side plates of the feeding bin. Supporting seats are mounted on the two side faces of the inner wall of the feeding bin and located at the bottoms of the material guiding plates, fixing columns are fixedly mounted in the supporting seats, springs are in clearance fit with the outer surfaces of the fixing columns, and buffer rods are in clearance fit with the tops of the outer walls of the fixing columns; through cooperative use of a guide plate, a supporting seat, a fixing column, a spring and a buffer rod, after stone enters the feeding bin, the stone entering the feeding bin is damped and supported, the falling speed of the stone is reduced, impact