This is a wireless soldering pen designed for home DIY enthusiasts, with a compact appearance, powerful features and convenient features. The glass tube near the welding needle can effectively insulate and prevent scalding, and at the same time, use the refraction principle to enlarge the portrait of the needle tip, helping users to complete the operation more finely. The glass tube also integrates a smoke purification system, which can absorb soldering waste gas at work and protect the user's physiological health.