Air explosion protection device and microwave oven using same

The invention discloses an air explosion protection device and a microwave oven applying the same. The air explosion protection device comprises a protection cover, an elastic piece, an electric shock piece, a positive electrode lead end and a negative electrode lead end, the positive electrode lead end and the negative electrode lead end are both installed at the top of the protective cover, the elastic piece is rotatably installed at the bottom of the protective cover, an installation part of the elastic piece is located in the protective cover, an abutting part of the elastic piece is located on the outer side of the protective cover, and the electric shock piece is installed at the top of the elastic piece; when the electric shock piece is pressed against the abutting portion of the elastic piece, the installation portion of the elastic piece drives the electric shock piece to tilt upwards and abut against the positive electrode lead wire end and the negative electrode lead wire end respectively, and a ci