Drainage belt with supporting structure

The utility model relates to the technical field of drainage devices, and discloses a drainage belt with a supporting structure, which comprises a drainage bag main body, supporting columns are fixedly arranged on two sides of the drainage bag main body, a first connecting pipe is fixedly arranged on one side of the top of the drainage bag main body, a shutoff valve is fixedly arranged on the first connecting pipe, and a second connecting pipe is fixedly arranged on the shutoff valve. A valve adjusting button is arranged on the shutoff valve in a sliding mode, and the end, away from the drainage bag body, of the first connecting pipe is fixedly connected with an anti-reflux device. According to the drainage bag, the two hard supporting columns are arranged at the two ends of the drainage bag, the drainage bag is provided with a supporting structure through the two supporting columns, the drainage bag is convenient to use, the situation that drainage is blocked due to the fact that the drainage bag is suddenly