The invention relates to the technical field of breathing filters, and particularly discloses a nasal cavity wetting and filtering dosing device. The nasal cavity wetting, filtering and dosing devicecomprises a U-shaped invisible connecting frame and two filtering type nose plug assemblies, each filtering type nose plug assembly comprises a soaking or medicine soaking tray, a positioning rod provided with a liquid storage groove used for storing soaking liquid or medicine liquid is connected to the middle of each tray, and a soaking filtering or medicine soaking non-woven net layer is installed on each tray through the corresponding positioning rod. The nasal cavity wetting, filtering and dosing device can effectively filter dust, dandruff, hair, pollen, cotton fibers and other allergensin air, can effectively avoid the problem of large respiratory resistance caused by the fact that existing filter layers are all columnar, and improves nasal mucosa inflammation. After the whole nasalcavity wetting, filtering and dosing device is worn, a wearer feels more comfortable, the filtering effect is better, meanwhile, the nasal cavity wetting, filtering and dosing device can directly, continuously and slowly release water aqua and paste medicine to the inner surface of the nasal cavity, and the purpose of relieving the condition of a rhinitis patient is achieved.