Disposable breathing machine humidifying self-control water level water feeder

The utility model discloses a disposable breathing machine humidifying self-control water level water feeder, relates to the field of self-control water level water feeders, and provides the following scheme aiming at the problems that an existing disposable breathing machine humidifier cannot automatically fill water in the humidifier, is troublesome to use and does not have a filtering function: the disposable breathing machine humidifying self-control water level water feeder comprises a humidifying tank, a liquid feeding cylinder, a cylinder and an exhaust pipe, a floating ball plate is arranged in the humidifying tank, the upper end of the floating ball plate is fixedly connected with a buoyancy needle, the upper end of the buoyancy needle is fixedly sleeved with a floating top plate, the inner wall of the liquid adding cylinder is fixedly sleeved with an annular plate, the inner wall of the cylinder is fixedly sleeved with a limiting groove table and a sealing ring, and a filtering cylinder is arranged