Waste oil liquid treatment system for scrapped motor vehicle

The utility model discloses a waste oil liquid treatment system for a scrapped motor vehicle, which comprises a waste oil liquid storage tank, a liquid inlet of the waste oil liquid storage tank is connected with a waste oil liquid recovery pipeline of an automobile disassembly plant; the purification unit comprises a primary water and impurity removal device, a front oil tank, a secondary water and impurity removal device and a rear oil tank which are sequentially connected with an output pipe of the waste oil liquid storage tank, an outlet of the rear oil tank is communicated with a first branch pipe, a second branch pipe and a third branch pipe, the first branch pipe is communicated with the purified oil liquid storage tank, and the second branch pipe is communicated with the purified oil liquid storage tank; the second branch pipe is communicated with a reflux inlet of the waste oil liquid storage tank; the distillation unit comprises a front mixing oil tank communicated with the third branch pipe, the fr