According to the Book of Aggadah from the academy of Rav Yeva Saba, Hei, which is Malchut, is established by receiving from the mouth of Arich Anpin. But here, with regards to this discussion, this is not so relevant, and Malchut is not connected to the mouth of Arich Anpin but to the left nostril in the nose. Even though it amounts to the same thing, judgment derives from Hei, since it is the aspect of lower Chochmah that shines with judgments (as in the Greater Gathering, section 219); judgment also derives from the nose, that is, from Chochmah that is bestowed by the nose, as written, “there went up a smoke out of his nostrils”.
You may argue that “fire out of his mouth devoured” (II Shmuel 22:9), meaning that there are judgments in the mouth as well. He answers, anger derives mostly from the nose, since Chochmah flows from there.