Water conservancy project crushing device

The hydraulic engineering crushing device comprises a crushing box and supporting legs fixed to the four corners of the crushing box, a driving box is arranged on the rear side of the crushing box, a first crushing cylinder and a second crushing cylinder are rotationally installed in the crushing box, a first rotating shaft is fixedly connected to the first crushing cylinder in a sleeved mode, and a second rotating shaft is fixedly connected to the second crushing cylinder in a sleeved mode. The rear end of the rotating shaft I extends into the driving box and is fixedly sleeved with a chain wheel I; and a rotating shaft II is fixedly sleeved on the grinding cylinder II. According to the crushing device for the water conservancy project, not only can large materials be preliminarily crushed, but also the large materials can be further rotationally crushed after being preliminarily crushed, so that the defects that the crushing speed of some blocky large materials is low and the working efficiency is low due t