Insect trapping device convenient to install and use

The utility model discloses an insect trapping device convenient to install and use, which comprises a sealed bell jar, a multi-mesh cone and a lure core rod, an insect collecting cavity is formed between the multi-mesh cone and the sealed bell jar, and a lure core is installed on the lure core rod. When the insect trapping device is used, insects enter from the insect inlet of the porous net cone and fly upwards out of the insect collecting opening under the induction effect of the lure core, continue to fly upwards, fly downwards along the sealed bell jar after touching the top of the sealed bell jar, and are trapped in the insect collecting cavity to be further captured. According to the sealed type bell jar, the sealed type bell jar shell is designed to be in a certain inclination, in the transportation process, a plurality of sealed type bell jars can be stacked, and the transportation convenience is improved. For the same package, only 12 sealed bell jars can be contained originally, the number of the s