Concrete mixing system

The utility model discloses a concrete mixing system, which belongs to the field of concrete mixers, and comprises a mixing barrel with a feeding port, a rotating shaft is vertically arranged in the mixing barrel, the rotating shaft is in transmission connection with a motor, a discharge port is arranged at the lower part of the mixing barrel, a sealing door is arranged at the discharge port, and the sealing door is connected with the motor. The rotating shaft is in nested connection with a stirring arm arranged in the radial direction of the stirring barrel, the stirring arm slides in the axial direction of the rotating shaft, the outer side end of the stirring arm is connected with a sliding rail on the side wall of the stirring barrel, and an arc-shaped part arranged in the height direction of the stirring barrel is arranged on the sliding rail; a stirring part extending into the stirring barrel is arranged at the lower end of the stirring arm. The utility model aims to provide a concrete mixing system whi