Four-stage concrete mixing plant capable of working efficiently

The efficient-working four-stage concrete mixing plant comprises a shell, a mixing bin used for mixing four-stage concrete is arranged in the middle of the inner side of the shell, a first motor is arranged at the middle end of the top of the mixing bin, and the bottom of the first motor is connected with a mixing rod rotationally connected with the inner end of the mixing bin; a plurality of first hydraulic cylinders are arranged on the two sides of the bottom of the shell, a supporting frame is connected to the tail ends of the extension sides of the first hydraulic cylinders, a plurality of storage bins are fixedly connected to the upper side of the inner end of the supporting frame, and adjusting pieces are connected to the bottoms of the storage bins. According to the efficient-working four-stage concrete mixing plant, a connecting block at the extension end of a second hydraulic cylinder pushes a conveying shell, a rotating shell and other assemblies to rotate, the inclined upper side discharging end of