Biogas membrane purification and purification equipment is a kind of biogas engineering equipment which removes carbon dioxide from methane (or landfill) by advanced hollow fiber gas separation membrane technology. The utility model is suitable for purification and purification of methane and landfill gas. Biogas purification can be used as the substitution of natural gas products, methane concentration can reach above 95% by compression / provide standard 25MPa vehicle gas filling device can be integrated synchronous compression (CNG) products, the pressure or the pressure to the standard of the natural gas pipeline after the nearest access local gas pipe network.