The application relates to the technical field of oil-water separation, and particularly discloses an aggregated oil-water separator which comprises a bottom plate, support columns are fixedly installed at the top of the four corners of the bottom plate, a top plate is fixedly installed at the top of the support columns, and a separation box is fixedly installed at the top of the middle of the top plate; the filter screen is used to assist in filtering large-particle impurities in the oil-water mixture; the filtered
scrap impurities are guided and discharged through the filter screen which is obliquely arranged; with the accumulation of the impurities, the impurities will naturally move along the filter screen which is obliquely arranged; the
impurity scrap can be discharged into the inside of the conveying
pipe through the leakage groove and then discharged into the waste residue collecting box through the conveying
pipe; meanwhile, the first motor in the top shell is started to drive the lead screw to drive the sliding block to drive the cleaning screen plate to slide and clean, so that the impurities on the outer surface of the filter screen can be effectively discharged into the waste residue collecting box to avoid the blockage of the filter screen, and the filtering effect can be maintained for a long time and with high efficiency.