Concrete mixer capable of mixing in classified mode

The utility model discloses a concrete mixer capable of mixing in a classified manner, which comprises a mixing box, one side of the mixing box is connected with a shell, and a bracket is fixed on the shell; a movable box body I and a movable box body II are arranged on the mixing box, and the box body I and the box body II are fixed through a connecting piece; a stirring rod and a smashing rod are arranged in the first box body and the second box body correspondingly, and one end of the smashing rod and one end of the stirring rod both penetrate through the support and are connected with a driving assembly. A mixing rod is arranged in the mixing box, and the axial end of the mixing rod extends into the shell and is connected with a first bevel gear. The problems that the product cost is increased invisibly due to the fact that a plurality of motor devices are used in existing classification stirring equipment, a stirring tank is fixed, concrete at the bottom of the tank body is prone to solidification, the c