The invention provides a pipeline four-way connector which comprises a four-way main body and an external connection pipe, wherein the four-way main body is integrally designed as a crossed shape; four ports of the four-way main body are provided with openings; any one opening is connected with the external connection pipe by virtue of a hold-down nut, and the hold-down nuts are movably connected with the opening surfaces of the four-way main body; the surfaces of the four-way main body and the external connection pipe are provided with anti-corrosion coatings. The pipeline four-way connector has the beneficial effects of being simple in four-way structure, convenient to use and capable of effectively changing the pipeline laying direction and meanwhile finishing an operation of collecting pipelines in three different directions to be one direction.