Aerosol generating device

The utility model provides an aerosol generating device. The aerosol generating device comprises a shell, a plurality of atomization assemblies, a first sealing piece and a suction nozzle. The atomization assembly is located in the shell and comprises an airflow channel. The first sealing piece is fixedly connected with the shell, the first sealing piece comprises a plurality of through openings, the through openings are correspondingly communicated with the airflow channels, and openings are formed in the side walls of the through openings; one end of the suction nozzle is in sliding connection with the first sealing piece, the suction nozzle is provided with a plurality of sharp parts, and the sharp parts are adjacent to the through opening; wherein the suction nozzle slides, the sharp part penetrates through the opening, and the suction nozzle is communicated with the through opening. The opening is stabbed through the sharp part to form the air channel, and the atomization assembly corresponding to the ai