Tracheotomy cannula structure

The utility model discloses a tracheotomy cannula structure which comprises a tracheotomy cannula body, a humidifying device and a connecting assembly. The tracheotomy cannula body is provided with a connecting end; the humidifying device is provided with a connecting hole which is in butt joint with the connecting end; the connecting assembly is arranged between the connecting end and the connecting hole and used for installing and fixing the humidifying device on the tracheostomy tube body. The connecting assembly is additionally arranged at the joint of the humidifying device and the tracheostomy tube body, namely between the connecting end and the connecting hole, so that the humidifying device is stably connected with the tracheostomy tube body into a whole, and the humidifying device and the tracheostomy tube body are prevented from being relatively separated due to the influence of external factors or human factors in the actual first-aid process; the purposes of firm connection, guarantee of the breat