Powdery mildew inoculation device and powdery mildew rapid batch inoculation method

The invention provides a powdery mildew inoculation device and a powdery mildew rapid batch inoculation method. The powdery mildew rapid inoculation device comprises an outer box body, an inner box body, a porous rotating platform, a speed-adjustable circulating fan and a plurality of inoculant fixing frames, the speed-adjustable circulating fan is fixedly mounted at the top of the inner box body, the four inoculant fixing frames are mounted at the top of the interior of the inner box body, and the porous rotating platform is mounted at the bottom of the interior of the inner box body. When powdery mildew is inoculated, an inoculant is placed on the inoculant fixing frame, a plant needing to be inoculated is placed on the porous rotating platform, doors of the inner box body and the outer box body are closed, the porous rotating platform is started, the speed-adjustable circulating fan is started, and powdery mildew conidia attached to leaf surfaces of the inoculant are blown off and are blown to the wetted p