Oil mist separation device suitable for rolling mill

The invention relates to an oil mist separation device suitable for a rolling mill. The oil mist separation device comprises an oil mist separation main bin and an oil sludge deposition bin arranged at the bottom of the oil mist separation main bin. An oil mist inlet and a filtering outlet are respectively formed in two ends of the oil mist separation main bin in the width direction; a plurality of partition plates are arranged in the oil mist separation main bin in the length direction of the oil mist separation main bin and extend in the width direction of the oil mist separation main bin, and the oil mist separation main bin is divided into a plurality of separation chambers by the partition plates. According to the oil mist separation device suitable for the rolling mill, the whole bin is divided into a plurality of single bins, a wide material working mode and a narrow material working mode are formed according to the difference of wide materials and narrow materials of strip steel rolled by the rolling