Tail water wetland constructed by combining natural ecological river channel

The utility model provides a tail water wetland constructed by combining a natural ecological river channel. The tail water wetland comprises a shoal wetland, an ecological gravel bed, a water distribution channel and a water inlet lifting system, the shoal wetland is constructed at a riverway shore, and the shoal wetland is communicated with the riverway; the ecological gravel bed is constructed at a river bank slope and is positioned at the top end of the shoal wetland; the water distribution channel is constructed at the slope top of the river bank slope and located at the top end of the ecological gravel bed. The inlet water lifting system is used for lifting the tail water of the sewage plant into a water distribution channel at the top end of the tail water wetland, so that the tail water flows through the ecological gravel bed and the shoal wetland in sequence under the action of gravity. According to the utility model, the sewage plant tail water wetland is constructed at the riverway shore, so that t