The invention discloses an ultrahigh heat collection and anti-radiation type combustion chamber. The ultrahigh heat collection and anti-radiation type combustion chamber comprises reflecting arches which are arranged on four sides, wherein a large inclination angle is formed in the short direction of the front arch, and a small inclination angle is formed in the long direction of the rear arch; the left arch and the right arch at two sides are correspondingly inwards obliquely contracted and are intersected with the front arch and the rear arch to form an irregular combustion chamber outlet asrequirement. The combustion chamber is ultrahigh in heat collection and anti-radiation effects; and adverse circumstances such as large size, unreasonable arrangement of heat bearing surfaces and high heat deviation of the boiler can be avoided. The invention also discloses an ultrahigh-performance garbage power generation boiler. The ultrahigh-performance garbage power generation boiler comprises a high-temperature smoke ejector, an after-combustion chamber and the ultrahigh heat collection and anti-radiation type combustion chamber. With the adoption of the ultrahigh-performance garbage power generation boiler, garbage can be subjected to high-temperature and low-oxygen incineration under the condition that the excess air coefficient is less than 1.2; the garbage can be efficiently andfully combusted, and moreover, the combustion process is highly harmless; the waste heat can be fully recovered; the heat efficiency is increased by about 10%; and more important is that the smoke emission is halved, and moreover, the harmless components are minimized.