The invention discloses a biomass burner for flue-cured tobaccos. The biomass burner for flue-cured tobaccos comprises a ventilation chamber, a feeding device and a burning hearth, wherein the feedingdevice is installed on the head part of the ventilation chamber, and the burning hearth is installed at the tail part of the ventilation chamber. The feeding device comprises a fixed material box, afeeding channel and a feeding power motor. A comprehensive fixed plate is arranged in the ventilation chamber. A poker sleeve is welded to the top of the fixed plate. A poker is placed into the pokersleeve. The front side of a poker fixing plate is welded to the head part of the poker. The tail part of the poker extends into the burning hearth. A poking spiral transmission rod is welded to the middle of the reverse side of the poker fixing plate. A heating rod is arranged in the middle of the bottom of the fixed plate. An ignition spiral transmission rod is hinged to the head part of the heating rod. The tail part of the ignition spiral transmission rod is connected with a power output shaft of an ignition telescopic power motor. The tail part of the heating rod extends into the burning hearth. The burning hearth comprises a hearth outer wall and a hearth base. The biomass burner for flue-cured tobaccos has the advantages of being easy and convenient to operate, sufficient in burning,low in cost, free of pollution and high in efficiency.