Oil filter of steel tube cold roll pipe machine unit

The utility model discloses an oil filter for a steel tube cold-rolling tube mill unit, which comprises a circularly rotating filter mesh, a clean oil tank arranged below the circularly rotating filter mesh for collecting the filtered clean oil, and an air suction hole communicated with a waste oil tank and arranged on a side close to the rotation channel of the circularly rotating filter mesh. The oil filter has reasonable structure, and the contaminants filtered from the filter mesh by continuous operation can be sucked in a precipitation tank by large and high-speed air flow, air speed and negative pressure generated by sucking wind at the air suction hole of a centrifugal fan, thereby continuously and effectively filtering the lubricating oil to ensure that the equipment and steel tubes are lubricated by the clean lubricating oil.