Actually, if your airway is semi-blocked, you may have sleep apnea, where your airway closes all or partway while you sleep. There is a type of machine that flows air continuously into your airway while you sleep (called a CPAP). There is also a dental appliance you can get that holds your jaw so your airway stays open--this is only for mild to moderate sleep apnea. If you suspect your airway is collapsing or that you stop breathing while you sleep or just never feel rested, you should go to a sleep specialist or clinic and have a study done. Sleep apnea can cause a lot of health problems, so it's important to get it diagnosed.
If that isn't your problem, but the snoring is really bothersome, there are surgical options. I've heard of people getting their tonsils removed to stop snoring, as well, if they are enlarged and block the airway. There is also a pretty new surgery, which is much less invasive. They place plastic implants in the back of your throat. This causes scar tissue to form in the soft palate, which hardens it and keeps it from vibrating when you sleep--no snoring. You should see an ENT (Ear, Nose, and Throat doctor) about this if you are intersted. Do some research on your own, as well, so you have lots of questions to ask at your doctor visit.
Good luck.