Molten salt electrolysis device

The utility model discloses a molten salt electrolysis device. Comprising an electrolytic bath with a cover plate, an anode located in the electrolytic bath, a cathode located in the electrolytic bath, and a cathode connecting rod matched with the cover plate, wherein one end of the cathode connecting rod can extend into the electrolytic bath to be connected with the cathode; the suspension arm is detachably connected with the cathode connecting rod, is horizontally arranged and is used for adjusting the distance between the electrodes; and the electrode lifting assembly is connected with the suspension arm and is used for driving the suspension arm to move up and down to adjust the area of the electrodes. According to the utility model, the limiting grooves distributed at intervals are formed in the suspension arm, and the cathode connecting rod is connected with the limiting grooves at different positions, so that the adjustment of the distance between the cathode and the anode is realized; the electrode ar