Liquefying and purifying device for chlorine in electrolytic magnesium chloride

The invention relates to a liquefying and purifying device for chlorine in electrolytic magnesium chloride. The liquefying and purifying device consists of a liquefier, a pipeline A, a pipeline B, a pipeline C, a pipeline D, a pipeline E, a pipeline F, a pipeline G, a gas-liquid separator, a liquid chlorine storage tank, an intermediate tank, a tail gas treatment tank, a chlorine inlet pipe and valves, wherein the chlorine inlet pipe is arranged at the top of the liquefier; one side of the upper portion of the liquefier is connected with the gas-liquid separator through a pipeline A, and the other side of the upper portion of the liquefier is connected with the tail gas treatment tank through the pipeline G; one side of the gas-liquid separator is connected with the bottom of the liquefier through the pipeline C; the bottom of the gas-liquid separator is connected with one side of the liquid chlorine storage tank through the pipeline B, and the other side of the liquid chlorine storage tank is connected with