The invention discloses a concrete stirring device for constructional engineering. The concrete stirring device comprises box body feeding interfaces, a plurality of discharging interfaces and supporting columns arranged at the lower end of the box body, and a box cover is connected with the upper end of the box body through connecting bolts. A rotating rod, stirring columns and scraping blocks are arranged on the box body, a case arranged at the upper end of the box body, and a rotating assembly, a displacement assembly and a connecting assembly are arranged in the case. A moving cylinder is arranged on the side wall of the box body, and a vibration assembly is arranged in the box body. A motor drives a connecting column to rotate, so that a connecting cylinder rotates under the action of a clamping block and a sliding groove, then the rotating rod rotates, and the rotating rod rotates to stir concrete in the box body. A connecting column rotates to enable a driving gear to rotate, then the connecting cylinder and the rotating rod move up and down while rotating through a driven gear, a worm gear, a worm, a rotating disc, a long rod, a connecting block and other components, then the stirring columns move up and down while stirring is conducted, and concrete in the box body is effectively stirred.