High-fall tunnel water filling system

The utility model relates to a high-fall tunnel water filling system. The utility model is applicable to the technical field of water conservancy and hydropower engineering. The technical problem to be solved by the utility model is to provide the high-fall tunnel water filling system. According to the technical scheme, the high-fall tunnel water filling system is characterized by comprising at least two water taking branches, the water taking branches are jointly connected with a water supply main pipe, and the water supply main pipe is communicated with a diversion tunnel through a water outlet pipe; the water taking branches are sequentially provided with a pump front isolation valve, a water pump and a pump rear isolation valve in the water flow direction, every two adjacent water taking branches are connected through a connecting pipe, one end of each connecting pipe is communicated between the water pump and the pump rear isolation valve of one water taking branch, and the other end of each connecting p