Yes, you can vaporize dry tobacco leaves in a weed vaporizer, no problems, loads of people do.
The VapeFuse Blog has a pretty detailed article about this very topic here: https://blog.vapefuse.com/11-things-you-need-to-know-about-vaping-tobacco/259
I suggest reading that and let us know here if you have any questions.
Generally speaking, vaping tobacco leaves in a dry herb vape is very similar to vaping cannabis.
You extract the nicotine, but very little to minimal tar and other crap like that.
Many people choose dry herb vaporizing to wean off cigarettes. Not everyone is drawn towards e-cigarettes and mods and would rather use tobacco leaves in a dry herb vape to keep it more natural.