Self-anchored socket double-sealing steel pipe

The utility model relates to a self-anchored spigot-and-socket double-sealing steel pipe, which belongs to the field of pipe fittings, and comprises two sections of pipe bodies which can be in spigot-and-socket connection with each other, the two ends of each pipe body are respectively provided with a spigot part and a socket part, the socket part of one pipe body extends into the spigot part of the adjacent pipe body, the socket part is provided with a groove, and the socket part of the other pipe body extends into the socket part of the adjacent pipe body. The groove and the socket part jointly form a cavity used for placing a sealing ring, the diameter of the tail end of the socket part is increased to form a skirt edge, the flange is characterized in that the skirt edge is connected with a first plate part and a second plate part which can be fixed or separated from each other, the first plate part is connected to the outer wall of the skirt edge in an attached mode, and the second plate part is connected