The invention discloses a gold impurity removing device. The device comprises a reaction container, a heating system, a driving device, an electric appliance control system, a hollow driven shaft anda pipeline accessory. The heating system comprises a heat preservation layer, an electric heating plate and an electric sliding ring, the electric heating plate is arranged on the outer wall of the reaction container, the heat preservation layer serves as an outer lining, the electric sliding ring (11) is arranged on the hollow driven shaft (10) in a sleeving mode, and an outgoing line of the electric sliding ring is connected with a power source. The driving device comprises a speed reducing motor, a driving shaft, a torque arm and a torque arm support, one end of the driving shaft is directly connected with the speed reducing motor, and the other end of the driving shaft is installed on the right side of the reaction container. The hollow driven shaft and the driving shaft are concentrically mounted, the hollow driven shaft is located on the left side of the reaction container, one end of an exhaust pipe penetrates into the reaction container and is provided with a vacuum cover at the end, and the other end of the exhaust pipe penetrates through the hollow driven shaft to be connected with a sealing assembly, a metering device and a one-way valve. According to the device, manualoperation is replaced, the high-temperature strong-corrosion working conditions are overcome, the working environment is improved, production potential safety hazards are reduced, and the labor intensity of workers is reduced.