Warming and humidifying buccal oxygen inhalation tube

The utility model discloses a heating and humidifying buccal oxygen inhalation tube which comprises an oxygen catheter, an oxygen dividing joint and two oxygen dividing branch tubes, one end of the oxygen catheter is provided with a joint connected with an air supply device, and the other end of the oxygen catheter is connected with one ends of the two oxygen dividing branch tubes through the oxygen dividing joint. The other ends of the two oxygen dividing branch pipes are connected with the same heat and humidity exchange structure, two oxygen outlets are formed in one side of the heat and humidity exchange structure, the two oxygen outlets are connected with two plug pipes respectively, and the two plug pipes are connected to form a duckbilled shape. The wet heat exchange structure is arranged to absorb moisture and heat exhaled by a patient, when inhaled gas passes through the wet heat exchange structure, the moisture and the heat are brought back to an airway, the efficient humidifying, heating and filter