Oxygen humidifying bottle

The utility model provides an oxygen humidifying bottle which comprises a bottle body and an upper cover that are welded through an ultrasonic wave welding method. The upper cover is provided with a gas inlet pipe and a gas outlet pipe which are respectively communicated with the bottle body. The gas inlet pipe is internally provided with an air filtering device. The oxygen humidifying bottle further comprises the following components: a pressure stabilizing device which is connected with the upper cover; a first pressure reducing device which is connected with the lower end of the gas inlet pipe; a second pressure reducing device which is connected with the first pressure reducing device, and a bracket which is arranged at the bottom in the bottle body and supports the second pressure reducing device. The oxygen humidifying bottle provided by the utility model can realize high safety and high sanitation in the oxygen conveying process, and furthermore restrains cross infection of bacteria by propagation in t