An ICU-special portable atomizing device enabling autonomously breathing according to airflow, comprising an atomization control host (03), an atomization generator (02), and a tee connecting pipe (01). The atomization generator (02) comprises a bottom housing (21), a medicinal solution tank (22), a medicinal solution outlet (23), an air guide port (24), a nozzle tube (25), a partition (26), and an atomization sheet (27), and is provided with a first circuit board (28) connected to the atomizing sheet (27) in the bottom housing (21). The partition (26) in the nozzle tube (25) separates the interior of the nozzle tube to form an atomization cavity (29) communicated with the medicinal solution outlet (23) and an air cavity (210) communicated with the air guide port (24). A sensor (211) connected to the first circuit board (28) is provided in the air cavity (210). The nozzle tube on one side of the air cavity (210) is provided with a cross-section stopper (212) that blocks the opening of the air cavity. A first ventilation port (213) and a second ventilation port (214) communicated with the air cavity (210) are respectively provided on both sides of the stopper (212). The first circuit board (28) extends to the outside of the bottom housing and is connected to the atomization generator (02).L'invention concerne un dispositif d'atomisation portable spécial unité de soins intensifs permettant une respiration autonome en fonction de l'écoulement d'air, comprenant un hôte de commande d'atomisation (03), un générateur d'atomisation (02), et un tuyau de raccordement en T (01). Le générateur d'atomisation (02) comprend un boîtier inférieur (21), un réservoir de solution médicinale (22), une sortie de solution médicinale (23), un orifice de guidage d'air (24), un tube de buse (25), une cloison (26) et une feuille d'atomisation (27), et est pourvu d'une première carte de circuit imprimé (28) reliée à la feuille d'atomisation (27) dans le boîtier inférieur (21). La cloison (26)
