PROBLEM TO BE SOLVED: To provide a powdered green tea furnace in which throughput is increased, further, drying efficiency is improved and production cost is reduced without damaging quality, and a method for producing unrefined tea using the same.SOLUTION: Provided is the powdered green tea furnace comprising: a drying chamber 42； a belt conveyor 43 conveying tea leaves by one step net-shaped belt； a hot wind generation apparatus 44 blowing hot wind from the lower part thereof； a stir-returning part 49 arranged at a charge part to be fed with the tea leaves and uniformizing the overlapping of the tea leaves scattered on the belt； and a stir-feeding part 50 turning over the tea leaves. They include a cylindrical rotary member, a plurality of support shafts radially fixed to the outer circumference thereof in circumference equidistant, and rectangular blades fixed to the tips thereof, in which tip parts are bent so as to be formed into a saw blade shape, a gap between each tip and the belt is set to prescribed dimensions, further, the rotary member of the stir-returning part is confronted with the belt progression direction a, and the rotary member of the stir-feeding part rotates in a direction along the belt progression direction a.SELECTED DRAWING: Figure 6【課題】処理量を増大させると共に、乾燥効率を向上させて、品質を損なわず生産コストを低減した碾茶炉およびこれを用いた荒茶製造方法を提供する。【解決手段】乾燥室４２と、一段の網状のベルトで茶葉を搬送するベルトコンベヤ４３と、この下方から熱風を出す熱風発生装置４４と、茶葉を供給する投入部に配設され、ベルト上に散布された茶葉の重なりを一定の厚さに揃えるかき戻し部４９と、上段のベルト上に複数配置され、茶葉を表裏反転するかき送り部５０を備え、これらが円筒状の回転部材と、この外周に放射状に円周等配に固定された複数の支持軸と、この先端に固定され、先端部が折曲されて鋸刃状に形成された矩形状のブレードを備え、この先端とベルトとの隙間が所定の寸法に設定されると共に、かき戻し部の回転部材がベルト進行方向アに対向し、かき送り部の回転部材がベルト進行方向アに沿った方向に回転する。【選択図】図６
