Petrochemical plant waste oil recovery device

The utility model relates to the technical field of waste oil recovery, in particular to a petrochemical plant waste oil recovery device which comprises a recovery tank body, a recovery filter box and a waste oil conveying system, the recovery filter box and the waste oil conveying system are respectively communicated with the recovery tank body, and a recovery pipe is arranged on the recovery tank body and extends into the recovery tank body. The bottom is close to the bottom of the recovery tank body. Recycled waste oil is filtered and precipitated through the arranged recycling filter box, filter screens with different mesh numbers can be replaced, so that oil sludge formed by mechanical impurities in the recycling tank body or influence on a follow-up recycling device is reduced, the size of the recycling tank body can be determined according to factors such as waste oil recycling amount and site space, the recycling tank body is installed nearby, and the recycling efficiency is improved. Waste oil recove