The invention discloses a rotary pipeline device. The rotary pipeline device comprises a rotary flange cover, shaft bases, a sleeve, a lifting lug, a lifting hook and an arc lifting arm, wherein the rotary flange cover is formed by a rotary cover and a flange, the flange is mounted on an opening of a pipeline, a handle is mounted in the middle of the rotary cover, the rotary cover is connected with the flange through a bolt, one side of the rotary cover is rotatably connected with one side of the flange, an arc opening is formed in one side of the rotary cover, and the rotary cover can rotate horizontally; the shaft bases are welded to one side of the flange, and the two shaft bases are symmetrically mounted based on the center axis of the flange; the sleeve is welded to one side of the flange and perpendicularly mounted between the two shaft bases; the lifting lug is welded to the top of the rotary cover, and a first round hole is formed in the middle of the lifting lug; the lifting hook is mounted above the lifting lug and formed by a perpendicular section and a lifting ring section integrated with the perpendicular section, and the lifting ring section penetrates through the first round hole; one end of the arc lifting arm penetrates through the sleeve and is rotatably mounted in the sleeve, and the other end of the arc lifting arm is rotatably mounted at the end of the perpendicular section. The rotary pipeline device has the advantages of solving the problem of hoisting during overhaul and the problem that no temporary storage space is needed for the disassembled flange cover.