Skid-mounted module assembly type water plant

The invention discloses a skid-mounted module assembly type water plant. The water plant comprises a biochemical treatment unit, a comprehensive office and an equipment room which are modularly prefabricated, the biochemical treatment unit comprises an anaerobic-anoxic tank, a sedimentation tank and an aerobic tank which are constructed through water tank unit modules, and the water tank unit modules are of rectangular module structures which can be stacked and connected with each other in a grounding manner; the comprehensive office and equipment room comprises one or more of a dosing room module, a fan room module, a fan room pipeline module, an online monitoring room module, a pretreatment and sludge dewatering room, an office module and a control room module; the dosing room module, the fan room module, the fan room pipeline module, the on-line monitoring room module, the pretreatment and sludge dewatering room, the office module and the control room module are all formed by box body modules which can be