Small-dose pesticide aerosol spray bottle capable of being directly used

The utility model discloses a small-dose pesticide aerosol spray bottle capable of being directly used, which comprises a bottle body, a partition plate arranged in the bottle body, an air inlet pipeline, a motor and a fan arranged between the bottom of the bottle body and the partition plate, a vent hole arranged at the bottom of the bottle body, a sealing cover fixed at the upper part of the partition plate, a pesticide storage cavity enclosed by the sealing cover and the partition plate, and a vent pipe arranged on the partition plate. A stop block is arranged at the top in the sealing cover, a conical groove is formed in the stop block, an air outlet pipe is installed at the top of the stop block, a spray head is arranged at the top of the bottle body, a power source and a switch are installed in the spray head, a medicine adding pipe communicated with the medicine storage cavity is arranged at the top of the bottle body, and a sealing plug is installed on the medicine adding pipe. During use, the prepare