The invention discloses full-automatic 
wastewater integrated multistage treatment equipment, and belongs to the technical field of 
wastewater treatment. The full-automatic 
wastewater integrated multistage treatment equipment comprises a bottom plate, a 
primary treatment box is installed on the bottom plate through a supporting frame, a water inlet 
pipe is installed at the top of the 
primary treatment box, and a smashing and filtering 
assembly is installed in the 
primary treatment box; and the bottom of the primary treatment box is funnel-shaped and is connected with a shunt 
pipe. The equipment can be used in a combined mode according to the type of 
sewage, multiple times of invalid treatment of part of the 
sewage is avoided, the 
sewage treatment efficiency is improved, impurities in the wastewater can be smashed and filtered, cleaning work can be achieved, continuous wastewater treatment is facilitated, and recycling and utilization of oil stains in the wastewater are achieved; a 
ultraviolet disinfection lamp can perform secondary disinfection and sterilization on the wastewater, and finally, the 
electric heating tube is used for heating the wastewater, so that germs in the wastewater are inactivated at high temperature, and the efficient disinfection and sterilization effect is achieved.