Abstract: A device for washing liquid turbulation for rotary jet heads, especially for water-cleaning machines. The head comprises a main body exhibiting an inlet, coupled with a closure body, exhibiting an outlet, and defining together with the main body, an internal chamber. A dispensing nozzle of the washing liquid is housed in the internal chamber and is mobile with a conical rotary motion having a vertex thereof in the frontal portion. The turbulation device, also located in the internal chamber upstream of the nozzle, comprises means for conveying for facilitating a flow of liquid from the inlet to the internal chamber with helical motion, impressing the conical rotary motion on the nozzle.