This is a "mist buster." It's being used in the city of Zhangjiakou in Hebei province—a city dealing with pollution. And dealing with it using a giant water cannon.
According to ChinaNews, it can spray a mist of water at least 100 meters far and 60 meters high. And yes, that's a military vehicle that's shooting mist into the air to combat smog.
The water particles, apparently, clomp together with the pollutants, and according to Ecoseed, cause natural precipitation that could help remove smog.
Zhangjiakou, along with Beijing, is bidding for the 2022 Winter Olympics.
河北张家口"雾炮"上岗"打"雾霾 [ChinaNews]
To contact the author of this post, write to bashcraftATkotaku.com or find him on Twitter @Brian_Ashcraft.
Kotaku East is your slice of Asian internet culture, bringing you the latest talking points from Japan, Korea, China and beyond. Tune in every morning from 4am to 8am.