How to download minecraft pc full ver and for free?

This isn't really not the best option, there are sites out there, but if you really want to just google free minecraft.

http://mineshafter.info/
Its for free and full version

Here i the game: http://www.gamestorrents.com/eng/pc-game-minecraft-multiversion-179p2p-multi5-descargar-torrent-11580.html
here are the servers you can use: http://minecraftserverlijst.nl/crackedlijst.htm

You can't. Minecraft is reliant on an account system with a login, so there's no way you can get the full version for free. Anyone who tells you differently is wrong and the website they cite will give you viruses. Torrents don't work either.