Integral material box type methane tank

The utility model relates to a methane tank. An integral material box type methane tank comprises a methane tank body and material boxes arranged in the tank body. The tank body comprises a fermentation area, a feeding area and a discharging area, the feeding area and the discharging area are arranged on the left side and the right side of the fermentation area respectively, a top cover is arranged on the top of the fermentation area, a lifting mechanism is arranged above the feeding area and the discharging area, and the top cover is provided with an air outlet. By means of the design of the integral structure, the problems that in a traditional methane tank, residue discharging is difficult and crusting and blocking are likely to happen are avoided, fermented raw materials can be regularly removed, and the load and the gas production efficiency of the methane tank are improved.