Gravel material crushing device

The utility model relates to the technical field of building construction, in particular to a gravel material crushing device which comprises a treatment box, a crushing mechanism is arranged on the upper surface of the treatment box, the crushing mechanism comprises a feeding box, and a first crushing roller and a second crushing roller are rotationally arranged in the feeding box; a mesh screening plate is rotationally connected to the inner wall of the treatment box, and a rectangular screening opening is formed in the right side of the treatment box. The mesh screening plate is arranged in the treatment box, the driving motor can be used for driving the linkage rod to move up and down in a reciprocating mode, then the mesh screening plate is driven to achieve the reciprocating shaking effect, and gravel materials accumulated on the surface of the mesh screening plate can turn over and jump; according to the gravel screening device, the surface of the mesh screening plate can be prevented from being blocke