Synchronous mining shrinkage stoping method for double-layer mine variety inclined ore body

The invention discloses a synchronous mining shrinkage stoping method for a double-layer mine variety inclined ore body. The method comprises the following four steps of 1 accurate mining, wherein a horizontal rock drift and a horizontal ore drift of a bottom plate are tunneled separately along the strike of a lower-layer mine variety, penetrate through an upper-layer mine variety by tunneling a cross drift and then enter a top plate, a horizontal rock drift and a horizontal ore drift of the top plate are tunneled separately along the strike of the lower-layer mine variety, an extracted ore drift is constructed every other a section of distance between the horizontal rock drifts and the horizontal ore drifts, and accurate mining raises are constructed in the horizontal ore drifts in the inclined direction of the ore body; 2 cutting, wherein connection roadways are constructed by being perpendicular to the accurate mining raises in the accurate mining raises every other a section of the distance; 3 stoping, wh