The invention discloses a curing barn using concurrent flow baking. The curing barn comprises a barn body, the outer side of the top of the barn body is provided with a heat pump external machine, the inner side of the top of the barn body is provided with a waste heat recovery device, the waste heat recovery device is communicated with the heat pump external machine, the barn body is internally provided with a heating chamber septum, a heat pump internal machine is installed between two ends of the heating chamber septum and the upper surface of the barn body, the lower part of the heating chamber septum is provided with a grill, the internal of the barn body is provided with wind disturbing plates which can change hot air directions, and the side surface of the barn body is provided with a gate. Hot air entering the curing barn flows parallel, and through arranging the fixed wind disturbing plate and the movable wind disturbing plate, flowing directions of hot air can be changed, so that hot air on the grill is parallel and uniform. Through cooperative use of a heat pump and the waste heat recovery device, energy of damp and hot air exhausted from the curing barn can be recycled.