Refining device for methanol production

The utility model relates to a refining device for methanol production, which comprises a distillation tower, a support frame fixedly mounted at the top of the distillation tower, a connecting box fixedly mounted at the top of the support frame, a condenser fixedly mounted in the connecting box, an extraction pipe fixedly mounted at the top of the distillation tower, and a condenser fixedly mounted in the extraction pipe. The condenser is sleeved with a circulating water pipe, a water pump is fixedly installed at the top of the supporting frame, a water tank is fixedly installed at the top of the distillation tower, and a conveying pipe is fixedly installed outside the condenser. According to the refining device for methanol production, after gas in the distillation tower is converted into liquid by starting the condenser, the liquid is conveyed into the filter tank through the conveying pipe, water in the water tank can be pumped into the circulating water pipe by starting the water pump, the outer surface o