Water conveying pipeline multifunctional drainage well and use method thereof

The invention discloses a water conveying pipeline multifunctional drainage well. The multifunctional drainage well comprises a water conveying pipeline, a drainage pipeline, a pressurizing drainage pipeline, a drainage valve, a fixed energy dissipation device, a check valve, a submersible pump, a drainage port and a drainage well body, wherein the drainage valve, the fixed energy dissipation device and the check valve are located in the dry well of the drainage well body, the submersible pump is located in the wet well of the drainage well body, and the drainage valve is arranged on the drainage pipeline. The invention further discloses a use method of the water conveying pipeline multifunctional drainage well. According to the water conveying pipeline multifunctional drainage well and the using method thereof, two water conveying pipelines can share one drainage well for draining, two drainage modes of self-flow drainage and pressurizing drainage can be achieved, the water conveyingpipelines can communicate