The utility model relates to a finished oil pipeline filter; 3-5 filter screens 1 connected in series are inserted in a horizontal mounted columnar filter casing 2; each filter screen 1 is in plate type round pipe shape, and is sheathed in the middle part of the filter net rack 5; the circumference of the revealed part of both ends of the filter net rack 5 is evenly mounted with 3-5 grease-proof rollers 4; the opening end of the filter casing 2 has outward convex edge covered by a blind plate 10. The operation of the filter is easy, timesaving, labor saving, cost economizing and safe; the operated pipeline of the finished oil can use the delivering/receiving ball barrel of the existing pipe scraper, control and change the process without reconstruction.