Insect killing device with attracting lamp

The invention discloses an insect killing device with an attracting lamp. The device comprises a mounting frame with a horizontal U shape, the interior of the mounting frame is provided with an attracting and killing mechanism and a separating and circulating mechanism; the attracting and killing mechanism includes an inducer and multiple stages of catchers, and the multiple stages of catchers comprise a sprayer; the separating and circulating mechanism includes a liquid collection funnel; the liquid collection funnel communicates with a liquid collection tank through a liquid discharge tube;a discharge hole is formed in the side wall of the liquid collection tank; in the liquid collection tank, a filter net is rotatably arranged; one end of the filter net is located in the discharge hole, and the other end of the filter net is connected to the top wall of the liquid collection tank through an elastic member; an impeller disposed below the liquid discharge tube is rotatably arranged in the liquid collection t