Leakage-proof rare earth electrolytic bath

The utility model provides a leakproof rare earth electrolytic bath which comprises a bath body outer shell, a bath body inner shell is nested in the bath body outer shell, a refractory brick layer and a water pipe are arranged between the bath body outer shell and the bath body inner shell, and the refractory brick layer and the water pipe arranged in the electrolytic bath are matched for use. When heat in the electrolytic cell is transmitted to the refractory brick layer, the refractory brick layer transmits the heat into the water pipe to preserve heat of the rare earth solution in the graphite cell, the heat in the electrolytic cell is kept constant in a water cooling mode, the temperature of the rare earth solution in the electrolytic cell is controlled, and boiling in the electrolytic cell is prevented. And secondly, the cell body outer shell, the refractory brick layer, the cell body inner shell, the impermeable layer and the graphite cell are wrapped layer by layer to form a whole, so that the leakage