The invention relates to a distributing device (100) for liquid substances, such as for instance manure, comprising: a distribution chamber (101), which distribution chamber (101) is provided with at least one supply (102) and a plurality of discharges (103) for liquid substance; a rotor (106) situated in the distribution chamber (101), which rotor (106) is provided with at least one cutting blade (206) displaceable along a number of discharges (103), which cutting blade (206) is configured to successively cover the discharges (103); a drive (104) for driving the rotor (106) via a drive shaft (105); a gas feed (209) connecting to the side of the cutting blade (206) facing toward the discharge (103), wherein the gas feed (209) runs at least partially through the drive shaft (105). The invention also relates to a manuring device for spreading liquid substances, such as for instance manure, over a ground surface. The invention further relates to a method for distributing liquid substances such as for instance ma
