Mayan face sculpture?

Chimney was replaced in a 1954 house built by an architecture. This was in the Chimney. Is it a flute for the chimney or what is the sculpture associated with? So curious.

https://preview.redd.it/sf6ohfj17hrd1.jpg?width=900&format=pjpg&auto=webp&s=bd4c6b451c8885fac80cba162b662d0bfc937181