Partie du corps avec plusieurs de personnes

Bonjour Martin,

The verb fouetter is transitive and takes le visage as a direct object, La pluie is the subject (qui is a relative pronoun introducing the following clause) and nous an indirect object pronoun. 

So we have the rain whipping, flogging, or lashing the face of us. (or lashing us in the face -  in English)

I understand your point, but this sentence structure is how I see it.

Hope it helps

Bonne journée

Jim