Methanol tail gas condensation recovery device

The utility model relates to a methanol tail gas condensation recovery device, which comprises a methanol storage tank, a methanol tail gas condenser, a closed collection container and a reflux pump, the methanol storage tank is an inner floating roof tank and is provided with a nitrogen seal system, and the top of the methanol storage tank is provided with an opening connected with a fire-retardant breather valve. The fire-retardant breather valve is further connected with an inlet of a methanol tail gas condenser, a liquid phase outlet of the methanol tail gas condenser is connected with a closed collection container through a condensate recovery pipe, and the closed collection container is connected to a reflux inlet of the methanol storage tank through a reflux pump. The device provided by the utility model can effectively solve the problem of resource waste of tail gas rich in refined methanol discharged by the methanol storage tank, the quantity of refined methanol condensate recovered all year round is