you could take it to a glass blower but your better off buying a new one it will be cheeper you could jb weld it for a temp fix but it's really not worth it
Try aquarium glue. I fixed my bong with it, it broke into 3 pieces. It's completely airtight now, I just toked out of it in fact Good luck! Let me know how it goes.
no offense man but it kinda looks like a piece of junk even if your fixing it for the time be sure to get a new one soon as you can