Smashing device capable of completely smashing waste wooden floor

The invention discloses a smashing device capable of completely smashing a waste wooden floor. The smashing device structurally comprises a device main body, a wooden floor feeding hopper, a feeding pipe, a working visible window, a support frame, a complete smashing device and a discharging hopper. The device main body is of a rectangular structure, the wooden floor feeding hopper is arranged inthe middle above the device main body and welded on the device main body in a penetration mode, the working visible window is arranged in the middle of the front surface of the device main body, and the support frame is arranged below the device main body and connected with the device main body vertically by welding. The complete smashing device can first cut and crush the waste wooden floor, divide the floor into small pieces and then smash the floor, the noise during smashing can be reduced, and the loss to the device is small. The waste wooden floor can be subject to double smashing, the smashing uniformity is impr