PROBLEM TO BE SOLVED: To provide a mechanism and a method for feeding a powder and granular material where the powder and granular material falling from a powder and granular material conveying mechanism is efficiently dispersed and fed to a powder and granular material receiving mechanism.SOLUTION: A device for feeding a powder and granular material comprises: a powder and granular material conveying mechanism 3 continuously conveying the powder and granular material 2 and falling from a conveyance end; a powder and granular material receiving mechanism 5 where the powder and granular material falling from the powder and granular material conveying mechanism is fed; and a powder and granular material feeding chute 4 where the powder and granular material falling from the powder and granular material conveying mechanism is fed to the powder and granular material receiving mechanism. In the powder and granular material feeding chute 4, a powder and granular material dispersing part 11 having a corner top porti