Vertical stirrer capable of adjusting concentricity of auger shell

The utility model provides a vertical mixer capable of adjusting the concentricity of auger shells, which comprises a base fixed on the ground and a support device, the support device comprises a support fixed on the base, a mixing tank and a power device are fixed at the upper end of the support, the power device comprises a motor fixed on the support, and the motor is fixed on the support. The motor is connected with a lower bearing chamber through a belt, the lower bearing chamber is provided with a rotating shaft and a stirring device through a bearing, the stirring device comprises a spiral blade installed on a stirring shaft, an auger shell is arranged on the outer side of the spiral blade, and after the spiral blade lifts materials, the materials fall off from the space between the auger shell and the stirring barrel, and then the materials are conveyed to the stirring barrel. The adjusting device comprises a plurality of adjusting pull rods arranged on the outer side face of the auger shell, and the a