What are all the types of portal you can Build in minecraft pocket edition?

You can't activate portals in minecraft pocket edition mojang hasn't released that feature yet but they Will bring portals to pocket edition in a future update. Tomasso said on his twiiter status "by the way Nether" *drops mic*

also you can't go to the nether in pocket edition, you can only build a Nether Reacter for now. Nether Reacter brings a Nether Tower to your world when activated with a Diamond Sword.