Aerosol pre-spraying device

The utility model discloses an aerosol pre-spraying device. The aerosol pre-spraying device comprises a platform body (1) and at least one metal impressed notch (3), wherein at least one spraying inlet (2) is formed in the surface of the platform body (1); the quantity of the metal impressed notch (3) is equal to that of the spraying inlets (2); the metal impressed notch (3) is fixedly connected onto the spraying inlet (2) respectively, and is provided with a through hole; the through hole comprises a tapered section with the outside pore diameter being greater than the inside pore diameter; a drainage channel (4) is arranged inside the platform body (1); the inlet end of the drainage channel (4) is communicated with the through hole, and the outlet end of the drainage channel (4) is connected with an air inducing device (7). The aerosol pre-spraying device is simple in structure, high in pre-spraying completion efficiency, low in labor intensity and suitable for aerosol bottles provided with valves and valve