Modularized multifunctional integrated anaerobic equipment

The invention discloses modularized multifunctional integrated anaerobic equipment. The modularized multifunctional integrated anaerobic equipment comprises a plurality of cuboid columnar reaction tanks which are completely the same in appearance, the upper surfaces and the lower surfaces of all the reaction tanks are squares with the same size, and the side surfaces of all the reaction tanks are four identical rectangles; each reaction tank comprises a hydrolysis module, an anaerobic module, a three-phase separation module, an equipment room and a biogas treatment grid; a water passing hole is formed in the partition plate between every two adjacent reaction tanks which need to be communicated with water. The construction period is shorter, the investment cost is lower, and the flexibility is high; the number combination of different functional modules can be designed according to different water quality and water quantity, so that the treatment function is quickly realized; equipment can be put into use aft