The invention provides an air duct component and an air conditioner. The air duct component comprises an air duct body, fan blade assemblies, a mounting plate, a driving assembly, a first flow guide assembly and a second flow guide assembly, wherein the air duct body is provided with a circulation channel; the multiple fan blade assemblies are arranged in the circulation channel and are arranged at intervals in the axial direction of the circulation channel; the mounting plate is mounted in the circulation channel, the driving assembly is mounted on the mounting plate, the driving assembly isin driving connection with the fan blade assemblies, a receding channel is formed in the mounting plate, and a rectifying assembly is arranged in the receding channel; and the first flow guide assembly is arranged at the first end of the circulation channel, and the second flow guide assembly is arranged at the second end of the circulation channel. The air duct component can switch the air flow inlet direction and the air flow outlet direction, and meanwhile the first flow guide assembly, the rectifying assembly and the second flow guide assembly exist at the same time, so that the air duct component has the inlet pre-rotation and outlet rectification functions and the middle rectification function, an air flow trend channel is greatly optimized, and the working efficiency of the fan blade assemblies is improved.