Portable discharging device for mixing machine

The utility model provides a portable discharging device for a mixing machine, which comprises a mixing barrel, the mixing barrel is vertically arranged, materials to be mixed are contained in the mixing barrel, the mixing barrel is connected with a support, and the mixing barrel is supported by the support; the discharging pipe is arranged at the lower part of the mixing barrel and is obliquely arranged; the spiral feeding cylinder is arranged at the lower end of the mixing cylinder, the spiral feeding cylinder is vertically arranged, and a spiral conveyor is arranged in the spiral feeding cylinder; the gate valve is arranged on the discharging pipe, is perpendicular to the axis of the discharging pipe and is used for controlling the opening and closing of the discharging pipe; the valve opening mechanism comprises a lifting frame connected with the gate valve, the lower end of the lifting frame is connected with a tension spring, the lower end of the tension spring is fixed to the outer side face of the spi