Folding leaf beater is a device to separate the leaves of tobacco leaves from the stems of tobacco, which can be divided into horizontal and vertical types. The blade beater is composed of two main parts: the blade beater and the air separator. The blade beater is a rotating roller, the cylinder surface is equipped with nails, and there are frame bars around the outside of the roller. The blade is torn from the tobacco stem by the relative action of nails and frame bars. The air separator divides the mixture after threshing into two parts, the leaf and the stem, by taking advantage of the different floating speeds of the leaf and the stem in the air. The tobacco stems with remaining leaves are sent to the next stage of threshing roll for treatment.