Movable device for the wet cleaning of artificial lawns, having: - at least one running wheel; - a coupling for connecting the device to a traction vehicle; - a housing, below which a cleaning area is defined during operation; - at least one washing bar (30, 30') which is arranged parallel to the cleaning area and in the housing during operation, with a high-pressure connection on which flat jet nozzles directed in the direction of travel are arranged in such a manner that a cleaning liquid flowing out of the flat jet nozzles during operation forms a cleaning liquid curtain in the region of intersection of the cleaning area and the cleaning liquid curtain intersects the cleaning area at a first angle (α, α'), wherein the at least one washing bar (30, 30') is rotatable in order to change the first angle (α, α') of the cleaning liquid; - a receiving ramp for a mixture of the cleaning agent and impurities from the artificial lawn, which receiving ramp is arranged upstream of the region of intersection in the direction of travel and is inclined counter to the direction of travel at a second angle (β), wherein the inclination of the receiving ramp is adjustable; - a transport worm which is arranged in the front region of the housing with respect to the direction of travel and is intended for the mixture received, at at least one end of which transport worm an extraction connection is arranged at which a negative pressure can be generated; and - a sealing strip which is arranged both in partial regions in the housing and also at a lower end of the receiving ramp, said end projecting in the direction of the artificial lawn surface, and, during operation, surrounds the cleaning area on the lower side of the housing, wherein the first and the second angle (α, α', β) are adjustable with respect to each other for different cleaning tasks, such as because of different types of artificial lawn, degrees of soiling or backfilling of the artificial lawn or abrasion depth of the backfilling. - at least one running wheel; - a coupling for connecting the device to a traction vehicle; - a housing, below which a cleaning area is defined during operation; - at least one washing bar (30, 30') which is arranged parallel to the cleaning area and in the housing during operation, with a high-pressure connection on which flat jet nozzles directed in the direction of travel are arranged in such a manner that a cleaning liquid flowing out of the flat jet nozzles during operation forms a cleaning liquid curtain in the region of intersection of the cleaning area and the cleaning liquid curtain intersects the cleaning area at a first angle (α, α'), wherein the at least one washing bar (30, 30') is rotatable in order to change the first angle (α, α') of the cleaning liquid; - a receiving ramp for a mixture of the cleaning agent and impurities from the artificial lawn, which receiving ramp is arranged upstream of the region of intersection in the direction of travel and is inclined counter to the direction of travel at a second angle (β), wherein the inclination of the receiving ramp is adjustable; - a transport worm which is arranged in the front region of the housing with respect to the direction of travel and is intended for the mixture received, at at least one end of which transport worm an extraction connection is arranged at which a negative pressure can be generated; and - a sealing strip which is arranged both in partial regions in the housing and also at a lower end of the receiving ramp, said end projecting in the direction of the artificial lawn surface, and, during operation, surrounds the cleaning area on the lower side of the housing, wherein the first and the second angle (α, α', β) are adjustable with respect to each other for different cleaning tasks, such as because of different types of artificial lawn, degrees of soiling or backfilling of the artificial lawn or abrasion depth of the backfilling.