Sewage collection trench system

The utility model provides a sewage collection trench system, which relates to the technical field of sewage collection, solves the problem that the existing trench system cannot collect and purify electroplating wastewater, and comprises a ground and sewage purification equipment, a trench upper layer is arranged at the bottom of the ground, and a trench lower layer is arranged at the bottom of the trench upper layer. The top of the trench lower layer is provided with an upper-layer grating, the top of the upper-layer grating is covered with a filtering membrane, the top of the ground is provided with a pair of supporting frames through bolts, the tops of the supporting frames are provided with a water recycling pipe supporting groove, a connecting groove is formed in the water recycling pipe supporting groove, and the top of the connecting groove is connected with a water recycling pipe supporting frame; a recycling water pipe is connected between one side of the recycling water pipe supporting frame and th