Wellhead protection device

The utility model relates to the technical field of building construction protection, in particular to a wellhead protection device which comprises a fence structure defined by four protection plates in the circumferential direction, each protection plate comprises two vertical rods and a hard plate installed between the two vertical rods, and the vertical rods in butt joint between the adjacent protection plates are connected through hinges. Reflective stickers are adhered to the vertical rods; and a warning lamp is mounted at the top of the fence structure. The wellhead protection device is high in stability, not prone to toppling, high in mobility, high in interference resistance to the external environment, good in safety performance and beneficial to improving the construction speed and meeting the requirement for wellhead hole protection in the construction process, and therefore the construction progress is accelerated on the premise that safety is guaranteed. 本实用新型涉及建筑施工防护技术领域，具体涉及一种井口防护装置，包括四块防护板周向围设