Nozzle system (1) for a powder blasting device comprisinga first nozzle element (10) for transporting a powder-gas mixture stream (21) along a transporting direction (T) anda second nozzle element (20), wherein the second nozzle element (20) surrounds the first nozzle element (10) such that at least one channel (25) is formed between the first nozzle element (10) and the second nozzle element (20), wherein the channel (25) is provided for transporting a liquid stream (22), wherein the first nozzle element (10) and the second nozzle element (20) are arranged such that in operation the powder-gas- mixture stream (21) ejected by the first nozzle element (10) is encased by the liquid stream (22) ejected by the channel (25) for forming an output stream (2) of the nozzle system (1),wherein the first nozzle element (10) has an acceleration part (11) having a first cross section and a spreading part (12) having a second cross section, wherein the spreading part (12) is arranged downstream of the acceleration part (11).
