Surface cleaning device for cleaning a floor surface which surface cleaning device comprises a casing and a liquid dispenser, wherein the casing has a circumferential casing wall and a casing top wall which form an inner space, wherein the casing has a casing outlet for discharging a volume of liquid medium away from the inner space;, wherein the liquid dispenser is positioned inside the inner space and arranged to dispense a liquid medium onto the floor surface, wherein the liquid dispenser comprises - a rotor including a rotor shaft which defines an axis of rotation (A-A) and including at least one rotor arm which extends radially away from the rotor shaft; - a motor for rotationally driving the rotor in a driving direction about the axis of rotation; - at least one blade connected to the at least one rotor arm which blade has a blade face to thrust a volume of liquid medium during a rotation of the rotor from the inner space in the driving direction towards the casing outlet; - at least one nozzle connected to the at least one rotor arm for jetting a stream of liquid onto the floor surface, wherein the at least one nozzle has a central axis (N-N) along which in operation a liquid stream is jetted onto the floor surface, characterized in that said central axis (N-N) is inclined positioned in a forward and downward direction with respect to the driving direction of the rotor under an acute angle of inclination α with respect to said axis of rotation (A-A), such that in operation a liquid stream is jetted onto the floor surface, wherein the liquid stream is directed downwardly and forwardly in the driving direction of the rotor., wherein the casing has a circumferential casing wall and a casing top wall which form an inner space, wherein the casing has a casing outlet for discharging a volume of liquid medium away from the inner space;, wherein the liquid dispenser is positioned inside the inner space and arranged to dispense a liquid medium onto the floor surface, wherein the liquid dispenser comprises - a rotor including a rotor shaft which defines an axis of rotation (A-A) and including at least one rotor arm which extends radially away from the rotor shaft; - a motor for rotationally driving the rotor in a driving direction about the axis of rotation; - at least one blade connected to the at least one rotor arm which blade has a blade face to thrust a volume of liquid medium during a rotation of the rotor from the inner space in the driving direction towards the casing outlet; - at least one nozzle connected to the at least one rotor arm for jetting a stream of liquid onto the floor surface, wherein the at least one nozzle has a central axis (N-N) along which in operation a liquid stream is jetted onto the floor surface, characterized in that said central axis (N-N) is inclined positioned in a forward and downward direction with respect to the driving direction of the rotor under an acute angle of inclination α with respect to said axis of rotation (A-A), such that in operation a liquid stream is jetted onto the floor surface, wherein the liquid stream is directed downwardly and forwardly in the driving direction of the rotor. - a rotor including a rotor shaft which defines an axis of rotation (A-A) and including at least one rotor arm which extends radially away from the rotor shaft; - a motor for rotationally driving the rotor in a driving direction about the axis of rotation; - at least one blade connected to the at least one rotor arm which blade has a blade face to thrust a volume of liquid medium during a rotation of the rotor from the inner space in the driving direction towards the casing outlet; - at least one nozzle connected to the at least one rotor arm for jetting a stream of liquid onto the floor surface, wherein the at least one nozzle has a central axis (N-N) along which in operation a liquid stream is jetted onto the floor surface, characterized in that said central axis (N-N) is inclined positioned in a forward and downward direction with respect to the driving direction of the rotor under an acute angle of inclination α with respect to said axis of rotation (A-A), such that in operation a liquid stream is jetted onto the floor surface, wherein the liquid stream is directed downwardly and forwardly in the driving direction of the rotor.