Fuente: WIPO "tobacco agriculture" The invention relates to a laminated, compact and optimized energy-saving bulk flue-curing barn for flue-cured tobacco, which is composed of a heating room, a fan and a hot-air channel. The energy-saving bulk flue-curing barn is characterized by being composed of 4-8 single bulk flue-curing rooms which are arranged side by side or horizontally and are respectively independent, wherein the inlet port of the hot-air channel of a first bulk flue-curing room is communicated with the high-temperature hot-air channel of the heating room; the outlet port of the hot-air channel of the first bulk flue-curing room is communicated with the inlet port of the hot-air channel of a second bulk intensive flue-curing room; and the outlet port of the hot-air channel of the last bulk flue-curing room (19) is communicated with the outside, the heating room or other flue-curing barns which require reversion after ceasing fire. The bulk flue-curing barn has various advantages, complies with the national conditions, meets the need of the modern tobacco agricultural development, and well solves many problems to be solved in popularization of the existing bulk flue-curing barn.