The invention discloses a dual-channel atomizing humidifier. The dual-channel atomizing humidifier comprises a shell, an atomizing device and a mist-out device, wherein the mist-out device comprises an atomizing mechanism, an air supply mechanism, an air-out channel and a mist-out channel, wherein the mist-out channel is located in the air-out channel and is connected to a mist-out channel mechanism channel; and the air-out channel is connected to an air-out mechanism channel. A mist supply channel is spaced by arranging the air-out channel and the mist-out channel. In the humidification process of the humidifier, water is atomized by the atomizing mechanism, and fine water mist particles enter an atomizing channel for conveying; air is conveyed by the air supply mechanism into the air-outchannel; the fine water mist particles are conveyed to an outlet end of the mist-out channel along with the mist-out channel and joint with air blown out by the air-out channel at the outlet end, sothat the fine water mist particles are conveyed farther; large water mist particles are prevented from being conveyed out from the mist-out channel, and thus, the humidifier is prevented from splashing surrounding environments; and the air force of the air supply mechanism can be freely adjusted to improve the user experience.