How to get lost passphrase?
Note that an individual address is not a wallet. A wallet is a collection of addresses.


  Does any wallet address has it's own passphrase in bitcoin daemon? Or it's only 1 passphrase for all wallets in 1 daemon?


A wallet has its own passphrase; passphrases are not per-address (that would be impractical).

You can have multiple wallets in a daemon each with different passphrases (the most recent versions of Bitcoin Core support multiwallet).


  And how can i get the passphrase of the address


Passphrases are not automatically generated. You as the user must have set it. If you do not know the passphrase, then there is nothing that you can do.