If you want to wield two weapons, just describe that you're wielding two weapons when you hack and slash. No additional moves required. The Ranger move is just a way to get a mechanical bonus—in this case, more damage.
Note that fighting with two weapons will hinder other actions you're taking, like whenever you're in combat or have your weapons drawn. Your descriptions now have to include that your hands are full.
You could also make a custom move, if your class doesn't have an advanced move that lets you pick a move from the Ranger class or if you want a different benefit.