We claim the ornamental design for a bottle air pump, as shown and described.
FIG. 1 is a perspective view of the bottle air pump showing the new design; the bottle is shown in broken lines and forms no part of the claimed design.
FIG. 2 is a perspective view of the bottle air pump showing the new design in an alternate orientation; the bottle is shown in broken lines and forms no part of the claimed design.
FIG. 3 is a right side elevation view of FIG. 1 shown with the beverage can removed for clarity of disclosure. The left side is a mirrored image of the right side and is not illustrated.
FIG. 4 is a right side elevation view of FIG. 1 shown with the beverage can removed for clarity of disclosure in an alternate position. The left side is a mirrored image of the right side and is not illustrated.
FIG. 5 is a front elevation view of FIG. 3.
FIG. 6 is a front elevation view of FIG. 3 in an alternate position.
FIG. 7 is top plan view of FIG. 3. The element shown in broken lines forms no part of the claimed design; and,