The utility model discloses a curing barn capable of improving curing uniformity and curing quality of
flue-cured tobacco, which is characterized in that a
biomass burner is arranged in a heating chamber, a heat exchange device is arranged on the
biomass burner, a
smoke exhaust pipe is arranged on the heat exchange device, a hot air inlet and a return air inlet are arranged on a heat insulation wall between a tobacco loading chamber and the heating chamber, and the hot air inlet and the return air inlet are communicated with the heating chamber. An upper-layer tobacco hanging frame, a middle-layer tobacco hanging frame and a lower-layer tobacco hanging frame are arranged in the tobacco containing chamber, a coil
pipe smoke inlet
pipe is connected to the
smoke exhaust pipe, smoke coil pipes are arranged on the upper sides of the upper-layer tobacco hanging frame, the middle-layer tobacco hanging frame and the lower-layer tobacco hanging frame and on the ground below the tobacco hanging frames, the smoke coil pipes are connected with the coil
pipe smoke inlet pipe, and a coil pipe smoke
exhaust pipe is arranged at the other ends of the smoke coil pipes. Air valves are arranged at the smoke inlet ends of the smoke exhaust pipe and the smoke coil pipes, the smoke coil pipes are located on the left side and the right side of the smoke hanging frame, and an inlet and outlet channel for up-and-down tobacco leaves is arranged between the smoke coil pipes on the left side and the right side; the
flue-cured tobacco curing device is suitable for an
airflow rising type curing barn and an
airflow falling type curing barn, and
flue-cured tobaccos on the upper layer, the middle layer and the lower layer can be uniformly cured.