Multistage rectification device for purifying dioxolame

The utility model discloses a multistage rectification device for purifying dioxolane, which belongs to the technical field of rectification and comprises a support plate, a rectification tower fixedly mounted on the surface of the support plate, an air inlet pipe fixedly mounted on one side of the rectification tower, a reboiler fixedly mounted at the other end of the air inlet pipe, and a liquid inlet pipe fixedly mounted on the lower surface of the reboiler. A gas outlet pipe is fixedly mounted on the surface of the rectifying tower, a condenser is fixedly mounted at the other end of the gas outlet pipe, the condenser is fixedly connected with the rectifying tower, a liquid collecting pipe is fixedly mounted on the lower surface of the condenser, and a liquid collecting box is fixedly mounted on the surface of the supporting plate and located on one side of the rectifying tower; the liquid collecting pipe is fixedly connected with the liquid collecting box, the water pump is fixedly installed on the surfac