The invention relates to a quick and automatic sealing pipeline joint, and belongs to the technical field of pipeline connection sealing. The quick and automatic sealing pipeline joint is composed ofa joint body, a fixing ring, a sealing ring, a pressing ring, a bolt, an anti-disengaging chain and a self-locking hook. One or two ends of the connector body are matched with a pipeline outer ring through the sealing ring. During mounting, only a pipeline needs to be inserted into a sealing ring hole, mounting and dismounting are convenient and rapid, the sealing effect is good, and the sealing effect is better as water pressure in the pipeline increases. The pipeline direction can be adjusted in a universal manner. The quick and automatic sealing pipeline joint can adapt to the connection ofpipelines of various diameters, is particularly suitable for rush drainage and rush filling on the disaster-resistant fields and rescue fire-fighting sites, can save a large amount of valuable time for rescue sites, and has remarkable social benefits and economic benefits. The problems that an existing pipeline is connected through a flange and is limited by a construction site, the mounting anddisassembly are extremely inconvenient, connecting bolt holes are not easy to align, the sealing performance is poor because the pressing force of each bolt is inconsistent, and leakage occurs easilyare solved.