NOVELTY - A dry and wet fermentation methane tank comprises dry and wet anaerobic fermentation tank having middle part provided with cylindrical water pressure apartment and one side that is provided with funnel-shaped charge hole. The funnel-shaped charge hole is connected to dry and wet anaerobic fermentation tank. A fermentation tank partition board is disposed at one side below the funnel-shaped charge hole. The dry and wet anaerobic fermentation tank is provided with discharge door close to fermentation tank partition board. The discharge door is connected to cylindrical water pressure apartment.    USE - A dry and wet fermentation methane tank.    ADVANTAGE - The dry and wet fermentation methane tank saves labor, time and electricity; is convenient to charge; solves environment pollution problem while producing methane; realizes energy conservation and emission reduction; and reforms traditional industry.    DETAILED DESCRIPTION - A dry and wet fermentation methane tank comprises dry and wet anaerobic fermentation tank having middle part provided with cylindrical water pressure apartment and one side that is provided with funnel-shaped charge hole. The funnel-shaped charge hole is connected to dry and wet anaerobic fermentation tank. A fermentation tank partition board is disposed at one side below the funnel-shaped charge hole. The dry and wet anaerobic fermentation tank is provided with discharge door close to fermentation tank partition board. The discharge door is connected to cylindrical water pressure apartment. The dry and wet anaerobic fermentation tank is connected with gas guide tube. A cover plate is disposed on cylindrical water pressure apartment and funnel-shaped charge hole. The inner diameter of body surrounding the circumference is 1200 mm. The cylindrical water pressure apartment has depth of 2400 mm and diameter of 1200 mm. The cylindrical water pressure apartment has upper opening diameter of 800 mm, height of 900 mm and lower opening diameter of 400 mm.