Sand screening device applied to constructional engineering

The invention discloses a sand screening device applied to constructional engineering, and relates to the field of sand screening of constructional engineering, the sand screening device comprises a side plate, a screening mechanism is arranged on the inner wall of the side plate, the inner wall of the side plate is rotatably connected with multiple sets of rotating rollers, and the top ends of the multiple sets of rotating rollers are slidably connected with a collecting box. In the sand screening process, the lower vibrating screen and the upper vibrating screen can be driven by the power mechanism at the same time to sort sand, so that the sand can be subjected to multi-stage sorting and collected and stored during screening, and secondary screening can be conducted without replacing a screen mesh during sand screening; the working efficiency of sand screening work is improved, a second sliding frame drives a rotating shaft to move up and down in the sand screening process, sand can be intermittently place