Sand screening equipment for building construction

The utility model relates to sand screening equipment, in particular to sand screening equipment for building construction. The building construction sand screening equipment is high in screening efficiency and capable of reducing environmental pollution. Sand screening equipment for building construction comprises a base, a supporting frame, fixing rods, a first shell, a motor and a first gear, the supporting frame is arranged on the left side in the base, the fixing rods are arranged on the front side and the rear side of the left side of the supporting frame, the first shell is arranged between the tops of the two fixing rods, the motor is installed in the first shell, and the first gear is arranged on an output shaft of the motor. A first gear rotates to drive a second gear to rotate, the second gear rotates to drive a filter screen to rotate, the filter screen rotates to screen out fine sand, the fine sand flows onto a base from the filter screen and then flows to the ground from the base, then the filte