According to the photocatalyst-based air purification module detachably attached to a stationary light fixture having a side-type bulb-type light source of the present invention, a light source unit having a shape of a bulb and emitting light by emitting power of a designated wavelength (or wavelength band) using a power source, and a side surface A socket portion for inserting and supporting the light source portion in a direction and supplying power to the light source portion, a lampshade portion that induces light radiated through the light source portion inserted in the socket portion to diffuse into a specified range, and an upper region is closed； In the air purifying module detachably attached to the light source of a stationary light fixture having a frame portion having a structure mounted on a table top or a floor surface coupled to at least one of a socket portion and a lampshade portion, in the form of a bulb inserted in the lateral direction of the socket portion It has an attachment area of a designated geometry structure that can be attached to a designated light bulb area of the light source, and the attachment area It is formed by coating a designated photocatalytic material on a designated air contact area of an attachment structure part and an area of the attachment structure part which maintains a state attached to a designated light bulb area of the light bulb type light source part by a structural characteristic and frictional force of the attachment structure part or at least one The photocatalytic material portion formed by coating the designated photocatalytic material in the designated air contact region among the regions of the contact structure portion provided to contact the air in the side region is provided or bound to one side of the attachment structure portion attached to the designated light bulb region of the light source portion It includes a fan unit for generating a pressure for flowing air around the photocatalytic material u
