Air duct aerosol mixer

The invention provides an air duct aerosol mixer, which belongs to the technical field of experimental testing, and comprises a mixer main body and docking ports, the docking ports comprise two air duct docking ports and one aerosol delivery pipeline docking port; the mixer main body is of a T-shaped symmetrical structure, the two air duct butt-joint ports are respectively connected with the air duct pipeline, and the aerosol conveying pipeline butt-joint port is connected with the aerosol conveying pipeline; the mixer main body comprises a gas collecting pipe and a gas distributing pipe; the whole gas collecting pipe is of a symmetrical structure and is arranged on the outer side of the mixer main body in the axial direction of the air duct pipeline, and the gas collecting pipe is communicated with a butt joint opening of the aerosol conveying pipeline through a pipeline; the section of the air flow channel is inverted U-shaped; the gas-collecting pipe is connected with the gas-distributing pipe; one end of