The invention discloses a rapid concrete stirring machine for building construction. The rapid concrete stirring machine for building construction comprises a stirring cavity, a seal cavity is formedin the left end in the stirring cavity, a first motor is arranged at the left end in the seal cavity, a connecting shaft is arranged on the right side of the first motor, a rotating plate is arrangedon the right side of the connecting shaft, second motors are arranged at the upper end and the lower end of the left side of the rotating plate, stirring shafts are arranged on the right sides of thesecond motors, stirring rods are arranged on the upper sides and the lower sides of the stirring shafts, a third motor is arranged on the right side of the stirring cavity, a first rotating shaft is arranged on the left side of the third motor, a first connecting rod is arranged on the lower side of the first rotating shaft, a scraping plate is arranged on the lower side of the first connecting rod, the left end of the outer side of the stirring cavity is provided with a connecting gear, a connecting cover is arranged on the outer end of the left side of a box body, a second connecting rod isarranged on the left side of the connecting cover, the left side of the second connecting rod is provided with a connecting sleeve, a connecting frame is arranged on the outer side of the connecting sleeve, an L-shaped connecting rod is arranged on the left side of the connecting frame, and a base is arranged on the lower side of the L-shaped connecting rod. According to the machine, work efficiency of the machine can be effectively improved, and discharging of the machine is facilitated.