Liquid-sealed distillation equipment

The utility model discloses liquid-sealed distillation equipment and belongs to the field of chemical equipment, and the liquid-sealed distillation equipment is used for solving the problems that the sampling is difficult in midway and potential safety hazards exist in the conventional equipment used for rectifying a material with a low melting point and a high boiling point. The liquid-sealed distillation equipment mainly comprises a distillation still and a tower column, wherein a liquid sealing device is arranged above the tower column; a condenser is arranged above the liquid sealing device; the liquid sealing device is connected with the condenser by virtue of a flange; the condenser is hermetically connected with a front fractionation recycle tank and a vacuum pump unit by virtue of a vacuum pipe; a discharge pipe with a valve I is arranged on one side of the liquid sealing device; the discharge pipe is hermetically connected with a material liquid receiving tank; an emptying pipe with a valve II is her