Gravel crushing device for building construction

The invention relates to the technical field of engineering equipment, in particular to a building construction gravel crushing device which is characterized in that a rack is fixedly arranged on a base, a processing kettle is arranged in the rack, a crushing hammer is arranged in the processing kettle, a driving shaft movably penetrates through the processing kettle, the crushing hammer is fixedly arranged on the driving shaft, and two supporting sleeves are fixedly arranged on plates on the left side and the right side of the rack in a penetrating mode respectively; the left end and the right end of the driving shaft movably penetrate through the supporting sleeves on the left side and the right side, the cover plate covers an upper port of the processing kettle, the sieve plate is fixedly embedded in the cover plate, and the driving mechanism is arranged on the rack; according to the device, the processing kettle capable of being adjusted to rotate is arranged, meanwhile, a structure for providing rotation