Omni-directional delivery tube

An omni-directional delivery tube, comprising:

• at least two cascade units, each of which comprises an enclosure body that defines a bore and a connection axle extending from the enclosure body and forming an axially extending delivery channel in fluid communication with the bore, the connection axle of a first one of the cascade units being received through and enclosed by the bore of a second one of the cascade units to thereby form a combination of cascade units that are jointed to each other in a cascade form and thus provide a delivery tube having a desired length by jointing a desired number of cascade unit, the cascade connection of the cascade units allowing of adjustment of angular position in a full turn of 360 degrees without any dead zone, the connection axle having an outer surface forming a plurality of holes that is in fluid communication with the delivery channel, the enclosure body of each of the cascade units forming therein an expanded cavity in portion of the bore, whereby a fluid is allowed to flow through the bore, the expanded cavity, and the delivery channel of the first cascade unit to be discharged through the holes of the connection axle of the first cascade unit into the second cascade unit.