Multifunctional cockroach trapping and killing device

The invention relates to a multifunctional cockroach trapping and killing device and belongs to the technical field of daily household articles. The multifunctional cockroach trapping and killing device includes a left barrel and a right barrel, wherein an inner portion of an upper end of the left barrel is provided with an inner interface, the inner interface is internally wrapped in a metal layer, a bottom end of the left barrel is connected with a bottom casing, an inner wall of the left barrel is provided with an inductor, the inductor and the inner interface form circuit connection, an upper end of the right barrel is a hollow large truncated cone structure, a bottom end of the right barrel is a hollow small truncated cone structure, the upper end of the right barrel and the bottom end are in transition connection through a cylinder, the cylinder is provided with an outer interface, the outer interface is provided with a metal layer in a wrapping mode, an end surface of the bottomend of the right barrel