The invention relates to the field of illumination, and provides a household illuminating lamp. The household illuminating lamp comprises a cover body and a lamp tube, wherein an opening is formed inthe bottom surface of the cover body, and the lamp tube is arranged in the cover body; light transmission holes are formed in the side wall of the cover body; a heat dissipation structure is arrangedon the cover body and comprises a vertical shielding plate and a transverse shielding plate; first heat dissipation holes are formed in the vertical shielding plate; second heat dissipation holes areformed in the transverse shielding plate; the first heat dissipation holes can be opposite to the light transmission holes after the vertical shielding plate slides upwards; the second heat dissipation holes can be opposite to the opening after the transverse shielding plate moves; a first driving rod and a first connecting rod are arranged on the inner wall of the top surface of the cover body ina sliding mode; one end of the first driving rod is connected to the side wall through a second elastic part; the fixed end of the first connecting rod is hinged to the end, facing the second elasticpart, of the first driving rod; the movable end of the first connecting rod is connected to the inner wall of the vertical shielding plate in a sliding mode; and a first cleaning plate is connected to the movable end of the first connecting rod.