A flexible nozzle head for an inflator includes a head-end housing, having an accommodating space for accommodating a nozzle head component; a pump-end housing, being fixedly connected to one end of a pump body of the inflator; and a hose, having one end airtightly overmolded with the head-end housing as an integer and having an opposite end airtightly connected to the pump-end housing. The head-end housing has a through hole communicated with the accommodating space and an axial channel of the hose. The pump-end housing has an interior thereof communicated with the axial channel of the hose.