The invention relates to the technical field of agitation equipment, in particular to a wet material blender. The wet material blender comprises a rack, a tank body, a main shaft, a driving motor, a rotating feeding device, an auxiliary material hopper, a belt transmission mechanism, an auxiliary material stirring motor, a spray pipe, a two-way lead screw, a guide column, a sliding block, a worm,a worm gear, a rack and a gear; the rotating feeding device is internally provided with an impeller; the two-way lead screw and the guide column are both arranged on the rack, and the main shaft is connected with the two-way lead screw; the sliding block is slidably connected with the guide column, and in threaded cooperation with the two-way lead screw; the worm is coaxially connected with the impeller, the worm is meshed with the worm gear, and the axis of the worm is vertical; the rack is arranged on the rack, the gear is coaxially connected with the worm gear, and the gear is meshed with the rack. The wet material blender aims to solve the deficiencies in the prior art, and has the advantages that auxiliary materials accounting for smaller proportions can be uniformly added into the main material during the stirring, prevent the accumulation of the auxiliary materials, and improve the product quality.