Concrete stirring device

The utility model discloses a concrete mixing device which comprises a mixing barrel, a branch box and a first pipeline, the branch box is installed on the inner wall of the mixing barrel, the first pipeline is installed on the top of the mixing barrel in a penetrating mode, a sliding block is installed on the outer wall of the branch box, the sliding block is triangular, and a first spring is installed on the inner wall of the branch box. By installing the first supporting rod, the stirring head and the first spring, the effects that concrete is stirred more evenly and the stirring quality is improved are achieved, the sliding block is used for preventing adhesion of concrete, the first sleeve is used for providing a moving place for the first supporting rod, the stirring rod rotates to drive the concrete to move, and the concrete moves to drive the stirring head to move; the stirring head moves to drive the first supporting rod to move, the first supporting rod moves to drive the first spring to move, the f