Sand screening device for building civil engineering construction

The utility model relates to the technical field of screening devices for building construction, and discloses a sand screening device for building civil engineering construction.The sand screening device comprises a supporting frame and supporting legs fixedly installed at the bottom of the supporting frame, a discharging port is formed in the middle of the bottom of the supporting frame, and a collecting box is arranged at one position of the discharging port in a communicating mode; the top end of the collecting box is communicated and connected with the bottom end of the material blocking hopper, the screening mechanism comprises a dispersing mechanism arranged above the material blocking hopper, a vibrating mechanism is arranged below the dispersing mechanism, the vibrating mechanism is installed on the outer surface of the supporting frame, and large sand blocks can be beaten and dispersed through the dispersing mechanism; according to the sand screening device, the sand can be filtered and screened mor