An injection cooling tower includes an injection tubular element having an elongated slit made thereon along axial direction through which a pressure forced hot liquid flow induced from outside is ejected to form into a continuous screen of high velocity liquid flow rapidly toward a diffuser wherein the kinetic energy of the continuous screen of high velocity liquid flow is converted into a pressure energy to result in a negative pressure to suck in cooled air current from outside so as to let the cooled air current mix with the continuous screen of high velocity hot liquid flow to start a heat exchanging process. The heat absorbed air current is further exhausted out of the tower through the top exhaust outlet where a mist eliminator is set, while the cooled liquid flow is guided by a turning vane to run into a bottom water storage tank from which the water is pumped by a water pump for further application.
