Trachea cannula capable of being cleaned and discharging sputum

The trachea cannula comprises a cannula body, a connector, a cannula head, a Murphy hole, a cuff, an inflation tube, a flushing tube and an adsorption tube, one end of the inflation tube is connected with the cuff, and the other end of the inflation tube is provided with a control valve and an inflation tube connector; the control valve comprises a one-way valve composed of a sealing ball and a sealing spring and an air leakage mechanism. One end of the flushing pipe is connected with a flushing mechanism in the cannula through a three-way joint, and the other end of the flushing pipe is provided with a flushing pipe joint and a one-way valve; one end of the adsorption tube is connected with the adsorption inner tube in the intubation tube, and the other end of the adsorption tube is provided with an adsorption tube joint which is provided with a cap; according to the utility model, the control valve is arranged on the inflation tube, and the deflation mechanism is arranged on the control valve, so that the c