An atomization device having dual modules, comprising an atomization host (2), a three-way tube (1), a controller (3), a ventilator and a mask. The atomization host (2) comprises a side cover (201), a nozzle (203), a liquid medicine bottle (204) and an atomization sheet (206), and a first plug-in interface (2051). A bottom portion within the nozzle (203) is provided with a partition plate (207) that divides the interior of the nozzle (203) into an upper atomization chamber (2031) and a lower airflow chamber (2032). The partition plate (207) is provided thereon with a gas flow detection structure (2033) extending into the interior of the three-way tube (1). The airflow detection structure (2033) comprises an inverted trapezoidal plate, a protrusion (101), a gas chamber, and a slot (208), wherein the slot (208) is internally provided with a sensor (209) that detects gas flowing through the gas chamber, and the first plug-in interface (2051) is internally provided with a first circuit board (205) that is connected to the sensor (209). The atomization sheet (206) is connected to the first circuit board (205). The sensor (209) detects the gas flow signal within the gas chamber, and then sends a signal to the controller (3), and the controller (3) drives the atomization host (2) to generate an atomized liquid medicine to be ejected from the nozzle (203) for administration. The device is convenient and flexible, and is waterproof and the structure thereof is durable.L'invention concerne un dispositif d'atomisation ayant deux modules, comprenant un hôte d'atomisation (2), un tube à trois voies (1), un dispositif de contrôle (3), un ventilateur et un masque. L'hôte d'atomisation (2) comprend un couvercle latéral (201), une buse (203), une bouteille de médicament liquide (204) et une feuille d'atomisation (206), et une première interface de raccordement (2051). Une partie inférieure à l'intérieur de la buse (203) est pourvue d'une plaque de séparation (207) qui divise l'intér
