The utility model discloses a controllable nasal cavity cleaner. The controllable nasal cavity cleaner structurally comprises a bottle body, a flow guide pipe, a bottle opening, a spray head, a spray nozzle, a bottle cap, a shell and the like, wherein the bottle body is made of a transparent, soft and elastic material; a bubble structure which is bulged outwards on the bottle body is elastic and is likely to deform after being extruded by a hand; the shell similar to the bottle body structure in terms of shape is sleeved outside the bottle body, is made of a hard material, and is unlikely to deform without elasticity; a plurality of openings are formed in the surface of the hollow shell, and correspond to bubble bulges on the bottle body in terms of shape, position and size; after the bottle body is sleeved with the shell, each bubble bulge on the bottle body is exposed from the corresponding opening in the shell. When the controllable nasal cavity cleaner is used, the water outflow can be controlled by controlling the quantity of the bubble bulges pressed by a finger. The controllable nasal cavity cleaner has the advantages of simple structure and convenience in operation, and the problem of inconvenience in control over the water outflow of a simple manual nasal cavity cleaner is solved.