Sewerage system of hanging toilet stool and hanging toilet stool

The embodiment of the utility model discloses a blow-down system of a hanging toilet. The blow-down system comprises a water inlet channel, water distribution holes, flushing holes, a main flushing channel, an auxiliary flushing channel, a spiral inner container and a blow-down channel which are arranged in a container bag, the water distribution holes are formed in the bottom of the auxiliary flushing channel and face upwards; the main flushing channel comprises a step-shaped water guide channel, a water baffle is arranged on the outer side of the initial section of the step-shaped water guide channel, and a water channel opening is formed in the tail end of the water baffle. The spiral liner comprises an upper section spiral flow guide surface and a lower section spiral flow guide surface which are connected in sequence; and the drainage channel is connected with the tail end of the lower section spiral flow guide surface. The embodiment of the utility model further discloses the hanging toilet stool. Accor