Pipeline port protection device

The utility model discloses a pipeline port protection device. The pipeline port protection device is characterized by comprising a pipe body, a sealing iron sheet and at least two positioning support legs, wherein one end of the pipe body is fixed with the sealing iron sheet, an inner wall of the pipe body is fixed with the positioning support legs, height of the pipe body is 50-100mm, the pipe body and the pipeline which is protected have a same pipe diameter, the number of the positioning support legs is three, the positioning support legs are equally welded at the inner wall of the pipe body, portions on the positioning support legs which are respectively extended out of a bottom port of the pipe body are 100-200mm, the sealing iron sheet is fixed with the pipe body by spot welding. The pipeline port protection device has advantages of improved work efficiency, reduced construction cost, simple construction, reduced rework rate, no negative effects on construction of other processes or construction produc