Spiral pile driver for building construction

The utility model discloses a spiral pile driver for building construction, and relates to the technical field of building construction. The spiral pile driver for building construction comprises a transverse plate, a hydraulic rod and an adjusting mechanism, a U-shaped plate is fixedly mounted at the top of the transverse plate, a round opening is formed in the transverse plate, a lifting plate is arranged between the interiors of the two sides of the U-shaped plate, a round box body is arranged at the bottom of the lifting plate, a round plate is fixedly connected to the bottom of the round box body, and auger blades are arranged at the bottom of the round plate; the hydraulic rods are fixedly installed at the top of the transverse plate, the two sets of hydraulic rods are evenly distributed, the free ends of the hydraulic rods are fixedly connected with linkage blocks, and the adjusting mechanism is arranged on the circular plate and can adjust movement of the auger blades. According to the spiral pile dri