Bell jar type coating device capable of coating various glazes simultaneously

The invention discloses a bell jar type coating device capable of coating various glazes simultaneously. The bell shape coating device comprises a large bell jar and a small bell jar, wherein the lower bell jar of the small bell jar is provided with an arc-shaped connecting gap corresponding to the surface radian of the lower bell jar of the large bell jar, and is tightly connected with the outer surface of the lower bell jar of the large bell jar by virtue of the arc-shaped connecting gap. Glazed curtains simultaneously coated by the bell jar type coating device capable of coating various glazes simultaneously provided by the invention are uniform and stable, and glaze materials on coated adobe surfaces are uniform, so that the glazes are rich in color.