Uncovered high-heat-insulation greenhouse methane pool

The utility model relates to a methane pool, in particular to an uncovered high-heat-insulation methane pool built inside a greenhouse. The uncovered high-heat-insulation greenhouse methane pool comprises a cylindrical fermentation pool buried under the ground, wherein a methane pipe introduced into a hollow cavity arranged inside the pool is also arranged on the pool top of the fermentation pool, two side surfaces of the fermentation pool are respectively provided with a material inlet and a material outlet, and the material inlet and the material outlet are respectively communicated with a material inlet pool and a material outlet pool through pipelines. The uncovered high-heat-insulation greenhouse methane pool is characterized in that the top of the fermentation pool is not provided with a sealing cover, and a cover plate is arranged at the material inlet part. The methane pool is not provided with a cover, so the influence caused by external oxygen during cover uncovering does not exist, and the methane