Residual oil discharge pipeline for helicopter engine

The utility model provides a residual oil discharge pipeline for a helicopter engine. The device is used for discharging residual oil in an engine out of a helicopter body. Characterized in that it ischaracterized in that it comprises, a discharge hose, an upper discharge communicating pipe and a lower discharge converging pipe; discharge ports with the same or similar engine discharge pressure are connected with a discharge communicating pipe through discharge software. A discharge port with large engine discharge pressure difference is connected with a second-way discharge communicating pipe through discharge software, and an upper discharge communicating pipe is installed on an engine compartment platform and communicated and converged with a lower discharge converging pipe below the engine compartment platform. According to the residual oil discharging pipeline for the helicopter engine, the residual oil discharging pipeline can be isolated from an engine compartment in the process of discharging the resi