Low-temperature methanol washing tail gas treatment device capable of increasing tail gas emission temperature

The utility model provides a low-temperature methanol washing tail gas treatment device capable of improving tail gas emission temperature, which is characterized by comprising a tail gas heater and a tail gas washing tower, a low-temperature methanol washing tail gas pipeline is communicated with a lower end inlet of the tail gas washing tower, and a desalted water pipeline is communicated with an upper end inlet of the tail gas washing tower. A top outlet of the tail gas washing tower is communicated with a refrigerant inlet of the tail gas heater, a refrigerant outlet of the tail gas heater is communicated with a carbon steel pipeline, a heating medium inlet of the tail gas heater is communicated with a steam or steam condensate pipeline, and a bottom outlet of the tail gas washing tower is communicated with the outside through a waste water pipeline. The tail gas emission temperature after low-temperature methanol washing can be increased, the corrosivity of the tail gas is effectively reduced, the tail g