1.If when i go back to Canada and i one get a legal divorc with my wife(sponsor),it will affect anything to my Pr status?
No
2.We have a son but my wife has no add my name on my son birth certificate,will this affect anything in my PR status?
No
3.What are my wife chances to deport my out of the contry after i get legal divorc?
If you have not broken any law, she can't. She could accuse you of marriage fraud but if there is no proof of marriage fraud, you will keep your PR.
4.I Have now a PRTD issued from embassy and i will go back to Canada,if she has fill out any paper for legal divorc is possible for my get a denied to port of entry in Canada for this reason?
No, you are a PR. Divorce will not change that.