PURPOSE: To diversify the movement status and upgrade the appearance by forming liquid supply ports on the base end sections of a plurality of pipe-shaped bodies supported rotatably, forming nozzle sections and the end sections and rotating automatically the pipe-shaped bodies by the counterforce arising from the jetting of liquid out of respective nozzles.

CONSTITUTION: Liquid fed from an end liquid supply port 10a into a space 11 at the upper end section of a fixed cylinder 3 is passed through a liquid supply main pipe 5, an inner flow path 15A of a stainless pipe 15, an inner flow path 16c of a shunt 16 and a nozzle opening 16b and jetted out. The stainless pipe 15 driven and rotated in the direction indicated by the arrow mark R1 by its counterforce, and the liquid supplied from the inner flow path 16c of the shunt 16 into inner paths 25A, 25A of two units of stainless pipes 25, 25 respectively and made to flow through the inner paths 25A, 25A passes through nozzle openings 28A, 28A and jetted out in the direction indicated by respective arrow marks P2, P2, and respective stainless pipes 25, 25 are driven and rotated in the direction indicated by the arrow marks R2, R2 respectively by its jetting counterforce. The whole system can be constituted as a simple and compact structure by the arrangement.