Dish-washing machine drainage assembly

The utility model provides a drainage assembly of a dish-washing machine. The drainage assembly comprises a base and a water cup, a drain pipe joint and an outer drain pipe are hermetically mounted on the base, and the drain pipe joint is communicated with the outer drain pipe; the drainage pipe joint is communicated with the water cup through a first drainage channel and/or a second drainage channel; the movable plugging part is arranged and is used for plugging the first drainage channel when the second drainage channel is used for draining water, so that the problem of water backflow caused by the fact that water flows into the first drainage channel in series is solved; the height of the second transfer connector is lower than the height of the second drainage port, the height of the second drainage channel is lower than the height of the second drainage port, water is drained through the gravity of water, the problem of residual water in the water cup is solved, and after drainage is completed, no residu