To provide a fluidized bed drying device, a fluidized bed drying facility and a fluidized bed drying method for uniformly drying wet raw materials input to the neighborhood of an input area while suppressing the wet raw materials from being occluded.

This fluidized bed drying device includes: a drying container including a drying room and a chamber room; an input part; a discharger; a gas dispersion plate formed with a through-hole through which gas can be supplied from the chamber room to the drying room; a fluidized gas supply part for supplying fluidized gas forming a fluidized bed with wet raw materials in the drying room to the chamber room; a vapor discharge part for discharging generated vapor to be generated when the wet raw materials of the fluidized bed formed according to the supply of the fluidized gas is dried from the upper part of the drying container; and a rotary part arranged in an area at the input part side among areas in which the fluidized bed of the drying room is formed, and equipped with a shaft extended to the width direction of the drying container, a branch part connected to the shaft, and extended to a direction away from the shaft and a driving part for rotating the shaft, and characterized such that the shaft rotates as a rotary shaft.