Crushing and recycling device for concrete

The utility model discloses a crushing and recycling device for concrete, which comprises a shell, a crushing and screening mechanism is fixedly connected inside the shell, a frame body is fixedly connected to one side of the shell, a discharging mechanism is fixedly connected inside the frame body, and the crushing and screening mechanism comprises a protective frame. According to the crushing and recycling device for the concrete, through the design of the crushing and screening mechanism, a cutting knife rotates to crush and cut the concrete, a screen plate on a screen plate filters out particles with the particle diameter conforming to the size, the particles are discharged to the outside through a discharging pipe, and when the cut concrete falls on the screen plate, the concrete is discharged to the outside through a discharging pipe; and in order to avoid the conditions of blockage and accumulation, a knocking plate rotates and knocks a T-shaped plate, at the moment, a screen plate drives a connecting