A manually operated appliance for the treatment of textile floor coverings with a foaming cleaning liquid, comprising a shaft-like handle with a bristled cleaning element attached thereto, a container for cleaning liquid replaceably mounted on the handle by means of a holding element, and a hose for connecting the container and cleaning element which is operatively connected to a dosing mechanism regulating the outflow of cleaning liquid from the container. The hose has a grooved internal profile and the cleaning element is a hollow brush having an inlet nozzle on its top surface for the hose level with a socket for fixing the handle. Outlet holes face the floor between rows of bristles arranged at the outer edges of the hollow brush, and a distributor plate covers the brush surface.