The 32-year-old midfielder had reached an agreement with another Iraqi team Al-Zawraa but parted company by mutual consent after the team was unable to meet its commitment.
Nouri has already played for Iranian clubs Esteghlal and Saba.
Also, former Persepolis forward Mehdi Daghagheleh has joined Iraqi football Naft Maysan.
Najaf FC and Naft Maysan are playing at Iraqi Premier League.