Pretty sure those are just normal misting fans in the first comment that I've responded to. Those just dump water in the air which causes perceived coolness as evaporation causes significant cooling.

To blow "just cold air", the only remaining options are either chemical, which is definitely not renewable at all, or by placing a cold radiator behind a fan. But then the question comes up where are you gonna take the coldness from? This is basically the same question as where are you going to dump the heat to? Surely, you can hook up an AC and use geothermal shenanigans to dump it under the ground, but that'd still be massively wasteful and the only way to get the ridiculous amount of energy for it at scale is from non-renewables, which would hasten the climate change even further.