The present invention is equipped with a dispersing dispersing means for dispersing and spreading the compost spread through the compost spreading device in the compost spreading area, and does not require post-treatment work to disperse the spread compost to the surrounding compost spreading area. Comprising a dispersing spreading device provided with a dispersing spray means of the compost, PTO shaft connected to the drive side of the tractor for transmitting power； A compost bin loaded with compost； A power transmission shaft 150 positioned below the PTO shaft and connected to a driving part of the tractor to receive power； A power branch unit 160 connected to the power transmission shaft 150 to reduce a power source transmitted from the power transmission shaft 150； It is installed at the rear of the loading box 140, the screw 311 is provided around one outer axis around the center portion, the other side having a direction opposite to the installation direction of the screw 311 around the outer axis A dispersing spray shaft 310 provided with a screw 312 is rotatable, for dispersing and dispersing compost loaded in the loading box 140； It is disposed above the intermediate dispersion spraying part 300, the screw 411 is provided around one outer axis around the center portion, the opposite of the installation direction of the screw 411 around the other outer axis A dispersing spray shaft 410 having an opposite screw 412 having a direction to be rotatable, and dispersing and dispersing an upper side dispersing spraying compost loaded in the loading box 140； By connecting between the power branch unit 160, the middle side dispersion spraying unit 300 and the upper side dispersion spraying unit 400, the power source transmitted from the power branch unit 160 to the middle side dispersion spraying It characterized in that it comprises a； 300 and the first power transmission gear unit 500 for relay transmission to the upper side dispersion spraying unit 400.본 고안은 퇴비 살
