This study reports the synthesis and multifunctional performance of snowman-like particles combining amphiphilicity, photocatalytic activity, and magnetic responsiveness. Anisotropic structures with spatially separated hydrophilic titania and hydrophobic polymer domains are formed via a swelling-induced protrusion strategy using titania-coated polymer spheres. The titania domain acts as the photocatalytic component, while the hydrophobic polymer protrusion enables strong adsorption at oil–water interfaces, allowing the particles to function as solid surfactants. Thermal crystallization of the titania shell enhances UV-driven degradation of rhodamine B. Incorporation of magnetic clusters into the titania region enables efficient magnetic separation, recovery, and reuse. The resulting particles demonstrate effective oil removal and sustained photocatalytic activity over repeated cycles, highlighting the potential of anisotropic particle design for reusable wastewater treatment.