To provide a sediment aerial sprinkle device having a simple structure and capable of blowing off dried sediment up to a distance of 20 to 30 meters and being suitable for spraying sediment on soft ground in a thin layer.

This sediment aerial sprinkle device 10 has a driving belt 1 for conveying sediment and a sediment discharge roller 2 pressing the belt 1 in the vicinity of a sediment discharge end of the driving belt 1 for conveying sediment. The driving belt 1 for conveying sediment is stretched between two pulleys 31 and 32. The pulley 32 on a sediment discharge end side is rotated by an electric variable motor 4 and a driving belt 5 to move the driving belt 1 for conveying sediment.