Reduced pressure distillation mechanism for purifying polyethylene glycol

The utility model relates to a reduced pressure distillation mechanism for polyethylene glycol purification, which comprises a distillation retort, the outer side of the distillation retort is communicated with a feeding port, the front side of the distillation retort is provided with a control panel, the distillation retort is provided with a distillation assembly, and one end of the distillation assembly is communicated with a liquid storage pipe. According to the reduced pressure distillation mechanism for polyethylene glycol purification, the end, located on the inner side of the distillation retort, of the air inlet pipe is spiral, and hot air introduced into the air inlet pipe can be discharged into the heat preservation jacket, so that the evaporation rate of liquid for polyethylene glycol purification in the distillation retort can be increased under the stirring cooperation of the stirring rod; and the exhaust pipe exhausts hot gas, the temperature in the distillation retort can be adjusted, and the