Negative-pressure drainage bottle for medical use

The utility model discloses a medical negative pressure inducing bottle, comprising a transparent bottle body and an inducing hose. On the bottle body, a liquid inlet and a port of negative pressure are arranged; one end of the inducing hose is connected with the liquid inlet; a liquid device is arranged at the bottle body. In case of the liquid over limit in the bottle body, the liquid is to pass liquid out of the bottle, and with completion of drainage, the negative pressure to generate negative pressure on the negative pressure openings, the device is used again with easy operation and time saving.