The utility model discloses an automatic compound
fertilizer mixing device, which belongs to the technical field of automatic mixing devices and comprises a
mixing tank, a driving component is mounted at the top of the
mixing tank, a first feed hopper is connected to one side, close to the top of the driving component, of the
mixing tank, and a second feed hopper is further arranged on one side, far away from the top of the first feed hopper, of the mixing tank. A supporting base is installed at the bottom of the material mixing tank, a discharging port is formed in one side of the material mixing tank, two sets of feeding ports are formed in the top of the material mixing tank, and wedge-shaped clamping grooves are formed in the peripheries of openings of the two sets of feeding ports correspondingly. According to the invention, a chemical
fertilizer with a second element can be automatically discharged, and meanwhile, the discharged chemical
fertilizer with the second element and the chemical fertilizer with the first element can be mixed and stirred, so that the mixing and stirring uniformity of two or more fertilizers can be effectively improved; and the problem of local aggregation of the single-element fertilizer caused by a direct
feeding mode is avoided.